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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Good afternoon,</span><span style="font-size:11.0pt;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:</span><span style="font-family:"Calibri",sans-serif;mso-ligatures:none">
<b>CVE-2016-7836: SKYSEA Client View Improper Authentication vulnerability</b>. Due to its high visibility, we are providing this in-depth information:<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><u><span style="font-family:"Calibri",sans-serif">History</span></u></b><span style="font-family:"Calibri",sans-serif">: On November 25, 2016, SkySea released a security advisory regarding a vulnerability discovered in their client view
software. The vulnerability has been assigned a CVSSv3 score of 9.8 (Critical) by NIST.<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>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo3">SKYSEA Client View ˜ 11.221.03<o:p></o:p></li></ul>
<p class="MsoListParagraph"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Fixed Versions:<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo3">SKYSEA Client View Ver.11.300.08h<span style="font-size:12.0pt"><o:p></o:p></span></li></ul>
<p class="MsoListParagraph"><span style="font-size:12.0pt"><o:p> </o:p></span></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 October 14, 2025, CISA has confirmed the vulnerability as being exploited in the wild and has added it
to the Known Exploited Vulnerabilities Catalog.<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">For more information regarding the activity observed by the SkySea Client View team please see the link here:
<a href="https://www.jpcert.or.jp/english/at/2016/at160051.html">https://www.jpcert.or.jp/english/at/2016/at160051.html</a><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">Exploitability:</span></b><span style="font-family:"Calibri",sans-serif"> Low Complexity, Network Exploitability<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">Exploit Maturity:
</span></b><span style="font-family:"Calibri",sans-serif">PoC<b><o:p></o:p></b></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<b><o:p></o:p></b></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<o:p></o:p></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"><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"> Restrict access to the management console via firewall or network segmentation<o:p></o:p></span></p>
<p class="MsoNormal"><b><u><span style="font-family:"Calibri",sans-serif"><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">: SKYSEA Client View Ver.11.221.03 and earlier allows remote code execution via a flaw in processing authentication
on the TCP connection with the management console program.<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><u><span style="font-family:"Calibri",sans-serif">Post-Exploit</span></u></b><span style="font-family:"Calibri",sans-serif">: Upon successful exploitation of the vulnerability, it can execute remote code with system privileges and could
fully compromise managed endpoints and potentially allow lateral movement.<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" style="text-align:justify;text-justify:inter-ideograph"><span style="font-family:"Calibri",sans-serif">As of October 14, 2025, Tenable has not released any plugins for the vulnerability and has no plugins in the pipeline.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><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>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l4 level1 lfo7"><span style="font-family:"Calibri",sans-serif">Apply vendor patch and restrict console access to trusted IPs<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l4 level1 lfo7"><span style="font-family:"Calibri",sans-serif">Monitor for unusual TCP activity on port 18700<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l4 level1 lfo7"><span style="font-family:"Calibri",sans-serif">Apply the suggestions in the “Workarounds” section.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l4 level1 lfo7"><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:l4 level1 lfo7">Apply appropriate updates provided by vendor to vulnerable systems immediately after appropriate testing.<o:p></o:p></li><li class="MsoNormal" style="mso-list:l4 level1 lfo7"><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:l4 level1 lfo7"><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"><o:p> </o:p></p>
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<p class="MsoNormal" style="line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;color:#1F497D;mso-ligatures:none;mso-fareast-language:ZH-CN"><img border="0" width="121" height="87" style="width:1.2604in;height:.9062in" id="Picture_x0020_4" src="cid:image001.png@01DC3D13.EA904A70"></span><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;color:#1F497D;mso-ligatures:none;mso-fareast-language:ZH-CN"><o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:105%"><b><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;mso-ligatures:none;mso-fareast-language:ZH-CN">Cyber Security Services<o:p></o:p></span></b></p>
<p class="MsoNormal" style="line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;mso-ligatures:none;mso-fareast-language:ZH-CN">State of Oregon Cyber Security Services<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;mso-ligatures:none;mso-fareast-language:ZH-CN">Enterprise Information Services | SOC<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;mso-ligatures:none;mso-fareast-language:ZH-CN">Cyber Security Services (CSS)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;mso-ligatures:none;mso-fareast-language:ZH-CN">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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