<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Aptos;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:12.0pt;
font-family:"Aptos",sans-serif;
mso-ligatures:standardcontextual;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#467886;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-ligatures:standardcontextual;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;
mso-ligatures:none;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:246114633;
mso-list-template-ids:-370662628;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level3
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level5
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level6
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level8
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level9
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1
{mso-list-id:628979881;
mso-list-template-ids:1964537050;}
@list l1:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level2
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level3
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level5
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level6
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level8
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level9
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l2
{mso-list-id:698434170;
mso-list-template-ids:352242658;}
@list l2:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l2:level2
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l2:level3
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l2:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l2:level5
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l2:level6
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l2:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l2:level8
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l2:level9
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l3
{mso-list-id:1496217853;
mso-list-type:hybrid;
mso-list-template-ids:1152963076 67698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}
@list l3:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l3:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l3:level3
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l3:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l3:level5
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l3:level6
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l3:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l3:level8
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l3:level9
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l4
{mso-list-id:1971546735;
mso-list-type:hybrid;
mso-list-template-ids:1486369368 67698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}
@list l4:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l4:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l4:level3
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l4:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l4:level5
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l4:level6
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l4:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l4:level8
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l4:level9
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l5
{mso-list-id:2079937626;
mso-list-template-ids:-2096758772;}
@list l5:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l5:level2
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l5:level3
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l5:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l5:level5
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l5:level6
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l5:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l5:level8
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l5:level9
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l6
{mso-list-id:2145392328;
mso-list-template-ids:1280997846;}
@list l6:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l6:level2
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l6:level3
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l6:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l6:level5
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l6:level6
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l6:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l6:level8
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l6:level9
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#467886" vlink="#96607D" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Good afternoon,</span><span style="font-family:"Calibri",sans-serif;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">The SOC Services team is reporting on the vulnerability:
<b>CVE-2024-27199 affecting JetBrains TeamCity on-premises servers’ web component with Path Traversal vulnerability</b>.
<span style="color:black">Due to active exploitation, we are providing this in-depth information. </span><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><u><span style="font-family:"Calibri",sans-serif">History</span></u></b><span style="font-family:"Calibri",sans-serif">: Discovered by Rapid7 and disclosed by JetBrains on March 4, 2024, and last updated on 10/4/2024. NVD initially published
a CVSSv3 score on 03/03/2024 and latest updates provided on 05/30/2025. The CVSS v3.x base score is 7.3 (High) as reported by JetBrains s.r.o.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Affected Versions<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3"><span style="font-size:12.0pt">All JetBrains TeamCity versions prior to 2023.11.4<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Fixed Versions<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3"><span style="font-size:12.0pt">JetBrains TeamCity 2023.11.4<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">For more information, please see the links here:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3"><span style="font-size:12.0pt">Vendor Advisory:
<a href="https://blog.jetbrains.com/teamcity/2024/03/additional-critical-security-issues-affecting-teamcity-on-premises-cve-2024-27198-and-cve-2024-27199-update-to-2023-11-4-now/">
TeamCity 2023.11.4 Release Notes </a> <o:p></o:p></span></li></ul>
<p class="MsoNormal"><b><u><o:p><span style="text-decoration:none"> </span></o:p></u></b></p>
<p class="MsoNormal"><b><u><span style="font-family:"Calibri",sans-serif">Intelligence</span></u></b><span style="font-family:"Calibri",sans-serif">: As of April 20, 2026, CISA has confirmed the vulnerability as being exploited in the wild and has added it
to the Known Exploited Vulnerabilities Catalog. This vulnerability has been exploited in the wild by various threat actors, including the China-linked group Earth Lamia and the financially motivated cybercriminal group Storm-1175, to gain administrative control
of servers, deploy malware, and expand botnets. Exploitation of this vulnerability often leads to data exfiltration and ransomware deployment, with Storm-1175 using it to deploy Medusa ransomware as part of high-velocity ransomware campaigns. The vulnerability
has been used to target specific sectors, including healthcare, education, and finance, primarily in the US, UK, and Australia.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">Exploitability</span></b><span style="font-family:"Calibri",sans-serif">: Network Exploitability<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">Exploit Complexity:
</span></b><span style="font-family:"Calibri",sans-serif">Low<b><o:p></o:p></b></span></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">First Proof of Concept:
</span></b><span style="font-family:"Calibri",sans-serif">03/04/2024<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">Remotely Exploitable:
</span></b><span style="font-family:"Calibri",sans-serif">Yes<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">Proof of Concept Available:
</span></b><span style="font-family:"Calibri",sans-serif">Yes<b><o:p></o:p></b></span></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">Zero Day: </span>
</b><span style="font-family:"Calibri",sans-serif">No<b><o:p></o:p></b></span></p>
<p class="MsoNormal"><b><u><span style="font-family:"Calibri",sans-serif;background:yellow;mso-highlight:yellow"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></p>
<p class="MsoNormal"><b><u><span style="font-family:"Calibri",sans-serif">Workarounds:</span></u></b><span style="font-family:"Calibri",sans-serif"> A security patch plugin is available for older versions of TeamCity (2023.11.4); otherwise, there are no effective
workarounds..<o:p></o:p></span></p>
<p class="MsoNormal"><b><u><span style="font-family:"Calibri",sans-serif;background:yellow;mso-highlight:yellow"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></p>
<p class="MsoNormal"><b><u><span style="font-family:"Calibri",sans-serif">How it works</span></u></b><span style="font-family:"Calibri",sans-serif">: An attacker could perform a denial of service against the TeamCity server by either changing the HTTPS port
number to a value not expected by clients, or by uploading a certificate that will fail client-side validation. Alternatively, an attacker with a suitable position on the network may be able to perform either eavesdropping or a man-in-the-middle attack on
client connections, if the certificate the attacker uploads (and has a private key for) will be trusted by the clients. Several paths have been identified that are vulnerable to a path traversal issue that allows a limited number of authenticated endpoints
to be successfully reached by an unauthenticated attacker. These paths include, but may not be limited to:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3">/res/<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3">/update/<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3">/.well-known/acme-challenge/<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><u><span style="font-family:"Calibri",sans-serif">Post-Exploit</span></u></b><span style="font-family:"Calibri",sans-serif">: An unauthenticated attacker can leverage this vulnerability to both modify a limited number of system settings
on the server, as well as disclose a limited amount of sensitive information from the server.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;background:yellow;mso-highlight:yellow"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Calibri",sans-serif">As of April 20, 2026, Tenable has released the following plugin for Tenable Vulnerability Management:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Calibri",sans-serif;background:yellow;mso-highlight:yellow"><o:p> </o:p></span></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse">
<tbody>
<tr>
<td width="119" valign="top" style="width:89.5pt;border:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal" align="center" style="text-align:center"><b><u><span style="font-family:"Calibri",sans-serif">Plugin<o:p></o:p></span></u></b></p>
</td>
<td width="672" valign="top" style="width:7.0in;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal" align="center" style="text-align:center"><b><u><span style="font-family:"Calibri",sans-serif">Title<o:p></o:p></span></u></b></p>
</td>
<td width="162" valign="top" style="width:121.5pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal" align="center" style="text-align:center"><b><u><span style="font-family:"Calibri",sans-serif">Severity<o:p></o:p></span></u></b></p>
</td>
<td width="162" valign="top" style="width:121.5pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 0in 0in 0in">
<p class="MsoNormal" align="center" style="text-align:center"><b><u><span style="font-family:"Calibri",sans-serif">Platform<o:p></o:p></span></u></b></p>
</td>
</tr>
<tr>
<td width="119" valign="top" style="width:89.5pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Calibri",sans-serif"><a href="https://www.tenable.com/plugins/nessus/191749">191749</a><o:p></o:p></span></p>
</td>
<td width="672" valign="top" style="width:7.0in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Calibri",sans-serif">JetBrains TeamCity Path Traversal (CVE-2024-27199)<o:p></o:p></span></p>
</td>
<td width="162" valign="top" style="width:121.5pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Calibri",sans-serif">High<o:p></o:p></span></p>
</td>
<td width="162" valign="top" style="width:121.5pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 0in 0in 0in">
<p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Calibri",sans-serif">Nessus<o:p></o:p></span></p>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Calibri",sans-serif;background:yellow;mso-highlight:yellow"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><u><span style="font-family:"Calibri",sans-serif">Recommended Actions</span></u></b><span style="font-family:"Calibri",sans-serif">:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">Date Added</span></b><span style="font-family:"Calibri",sans-serif">: 2026-04-20<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">Due Date</span></b><span style="font-family:"Calibri",sans-serif">: 2026-05-04<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"> <o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l3 level1 lfo9"><span style="font-family:"Calibri",sans-serif">Verify host has not been compromised before applying patches.<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo9"><span style="font-size:12.0pt">Apply appropriate updates provided by vendor to vulnerable systems immediately after appropriate testing.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l3 level1 lfo9"><span style="font-family:"Calibri",sans-serif">Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l3 level1 lfo9"><span style="font-family:"Calibri",sans-serif">Apply the Principle of Least Privilege to all systems and services.<o:p></o:p></span></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt">EIS Security Operations Center</span></b><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Enterprise Information Services<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Cyber Security Services | CSS<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">SOC Hotline: (503) 378-5930<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><a href="mailto:SOC@EIS.OREGON.GOV">SOC@EIS.OREGON.GOV</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:none"><img border="0" width="54" height="54" style="width:.5625in;height:.5625in" id="Picture_x0020_2" src="cid:image001.png@01DCD0CF.0A9B2660"></span><span style="font-size:11.0pt"> </span><span style="font-size:11.0pt;mso-ligatures:none"><img border="0" width="205" height="53" style="width:2.1354in;height:.552in" id="Picture_x0020_1" src="cid:image002.png@01DCD0CF.0A9B2660"></span><span style="font-size:11.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>