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<p class="MsoNormal"><a name="_Hlk122600425">Good morning,</a><span style="mso-bookmark:_Hlk122600425"><span style="mso-ligatures:none"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">The SOC Services team is reporting on the vulnerability:
<b><i>MS-ISAC 2023-117 Multiple Vulnerabilities in Google Android OS Could Allow for Remote Code Execution</i></b>.  Due to its high visibility, knowledge of the software installed in the state environment, and active exploitations, we are providing this in-depth
 information:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>History</u></b>: On October 1, 2023 and October 5, 2023 Google released updates to patch its Android operating system, and address multiple CVEs.  In particular, 2 previously disclosed CVEs
 were addressed which are known to be under active exploitation: CVE-2023-4211 (Medium) Arm Mali GPU Kernel Driver Use-After-Free Vulnerability and CVE-2023-4863 (High) Heap Buffer Overflow in libwebp in Multiple Web Browsers.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">In addition, 3 other Critical vulnerabilities that could allow for remote code execution were addressed relating to Qualcomm components: CVE-2023-24855 is a Memory Corruption in Modem While Processing
 Security Related Configuration Before AS Security Exchange and is currently assigned a CVSSv3 rating of 9.8 (Critical); CVE-2023-28540 is a Cryptographic Issue in Data Modem Due to Improper Authentication During TLS Handshake and is currently assigned a CVSSv3
 rating of 9.1 (Critical); and CVE-2023-33028 is a Memory Corruption in WLAN Firmware While Doing a Memory Copy of PMK Cache and is currently assigned a CVSSv3 rating of 9.8 (Critical).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">Furthermore, 2 other High vulnerabilities that could allow for remote code execution were addressed: CVE-2023-21282 is a Possible Out-of-Bounds Write Due to An Incorrect Bounds Check in Media Framework
 and is assigned a CVSSv3 rating of 8.8 (High); and CVE-2023-21273 is a Possible Out-of-Bounds Write Due to An Incorrect Bounds Check in System and is assigned a CVSSv3 rating of 8.8 (High).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">The following products are affected:<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="mso-bookmark:_Hlk122600425">Android OS with patch level prior to 2023-10-05<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">Patches are available from Google to fix the vulnerabilities.  The fixed versions are:<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="mso-bookmark:_Hlk122600425">Android OS with patch level 2023-10-05<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">Further information is available from Google and Qualcomm as published in their respective security bulletins:<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="mso-bookmark:_Hlk122600425">Android Security Bulletin-October 2023 –
</span><a href="https://source.android.com/docs/security/bulletin/2023-10-01"><span style="mso-bookmark:_Hlk122600425">https://source.android.com/docs/security/bulletin/2023-10-01</span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3"><span style="mso-bookmark:_Hlk122600425">Qualcomm October 2023 Security Bulletin -
</span><a href="https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2023-bulletin.html"><span style="mso-bookmark:_Hlk122600425">https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2023-bulletin.html</span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></li></ul>
<p class="MsoListParagraph"><span style="mso-bookmark:_Hlk122600425"><span style="background:yellow;mso-highlight:yellow"><o:p> </o:p></span></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>Intelligence</u></b>: As of September 11, 2023, Google is aware that CVE-2023-4863 has been exploited in the wild, and as of October 3, 2023 Google is aware that CVE-2023-4211 has been exploited
 in the wild.  As of October 6, 2023, Qualcomm is unaware of the 3 critical CVEs being exploited in the wild.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>Workarounds:</u></b>  There are no workarounds at this time.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u><span style="background:yellow;mso-highlight:yellow"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>How it works</u></b>:  There is no public information about how the vulnerabilities are exploited at this time.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><span style="background:yellow;mso-highlight:yellow"><o:p> </o:p></span></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>Post-Exploit</u></b>:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">Upon opening a malicious WebP image, CVE-2023-4863 could be exploited by using a heap buffer overflow in the content process allowing an attacker to perform an out-of-bounds memory write. 
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">Upon successful exploitation of CVE-2023-4211, a local non-privileged user could make improper GPU memory processing operations to gain access to already freed memory.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">No further details have been provided regarding the Qualcomm CVEs at this time and no known indicators of compromise have been publicly shared at this time.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><span style="background:yellow;mso-highlight:yellow"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="mso-bookmark:_Hlk122600425">As of October 6, 2023, the following vulnerability plugin has been released and is currently in Tenable Security Center:<o:p></o:p></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><span style="mso-bookmark:_Hlk122600425"><b><u>Plugin<o:p></o:p></u></b></span></p>
</td>
<span style="mso-bookmark:_Hlk122600425"></span>
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<p class="MsoNormal" align="center" style="text-align:center"><span style="mso-bookmark:_Hlk122600425"><b><u>Title<o:p></o:p></u></b></span></p>
</td>
<span style="mso-bookmark:_Hlk122600425"></span>
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<p class="MsoNormal" align="center" style="text-align:center"><span style="mso-bookmark:_Hlk122600425"><b><u>Severity<o:p></o:p></u></b></span></p>
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<span style="mso-bookmark:_Hlk122600425"></span>
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<p class="MsoNormal" align="center" style="text-align:center"><span style="mso-bookmark:_Hlk122600425"></span><a href="https://www.tenable.com/plugins/nessus/182435"><span style="mso-bookmark:_Hlk122600425">182435</span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></p>
</td>
<span style="mso-bookmark:_Hlk122600425"></span>
<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="mso-bookmark:_Hlk122600425">ARM Mali GPU Kernel Driver < r43p0 Improper Memory Access (CVE-2023-4211)<o:p></o:p></span></p>
</td>
<span style="mso-bookmark:_Hlk122600425"></span>
<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="mso-bookmark:_Hlk122600425">High<o:p></o:p></span></p>
</td>
<span style="mso-bookmark:_Hlk122600425"></span>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>Recommended Actions</u></b>:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"> <o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l5 level1 lfo8"><span style="mso-bookmark:_Hlk122600425">Verify host has not been compromised before applying patches.<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l5 level1 lfo8"><span style="mso-bookmark:_Hlk122600425">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:l5 level1 lfo8"><span style="mso-bookmark:_Hlk122600425">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-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l5 level1 lfo8">
<span style="mso-bookmark:_Hlk122600425">Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.<o:p></o:p></span></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l5 level1 lfo8">
<span style="mso-bookmark:_Hlk122600425">Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l5 level1 lfo8"><span style="mso-bookmark:_Hlk122600425">Apply the Principle of Least Privilege to all systems and services.</span><o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="line-height:105%"><span style="color:#1F497D;mso-ligatures:none"><img border="0" width="121" height="87" style="width:1.2638in;height:.9097in" id="Picture_x0020_4" src="cid:image001.png@01D9F1DD.F2FA0BC0"><o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:105%"><b><span style="mso-ligatures:none">Cyber Security Services<o:p></o:p></span></b></p>
<p class="MsoNormal" style="line-height:105%"><span style="mso-ligatures:none">State of Oregon Cyber Security Services<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:105%"><span style="mso-ligatures:none">Enterprise Information Services | SOC<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:105%"><span style="mso-ligatures:none">Cyber Security Services (CSS)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:105%"><span style="mso-ligatures:none">SOC Hotline: (503) 378-5930 | SOC Services (503) 373-0378<span style="color:#1F497D"><o:p></o:p></span></span></p>
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<p class="MsoNormal" style="line-height:105%"><i><span style="color:#2E74B5;mso-ligatures:none">“Ensuring user-friendly, reliable and secure state technology systems that serve Oregonians.”<o:p></o:p></span></i></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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