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Files from zcgonvh

Email addresszcgonvh at qq.com
First Active2017-05-11
Last Active2022-08-22
Microsoft Exchange Server ChainedSerializationBinder Remote Code Execution
Posted Aug 22, 2022
Authored by Spencer McIntyre, Markus Wulftange, zcgonvh, Grant Willcox, testanull, PeterJson, Microsoft Threat Intelligence Center, Microsoft Security Response Center, pwnforsp | Site metasploit.com

This Metasploit module exploits vulnerabilities within the ChainedSerializationBinder as used in Exchange Server 2019 CU10, Exchange Server 2019 CU11, Exchange Server 2016 CU21, and Exchange Server 2016 CU22 all prior to Mar22SU. Note that authentication is required to exploit these vulnerabilities.

tags | exploit, vulnerability
advisories | CVE-2021-42321, CVE-2022-23277
SHA-256 | 357c3536b07ff810cec76347c7e5ce16faf862cac3951d66875221d4f487430d
Microsoft Exchange Server Remote Code Execution
Posted Feb 25, 2022
Authored by zcgonvh, Grant Willcox, testanull, PeterJson, Microsoft Threat Intelligence Center, Microsoft Security Response Center, pwnforsp | Site metasploit.com

This Metasploit module allows remote attackers to execute arbitrary code on Exchange Server 2019 CU10 prior to Security Update 3, Exchange Server 2019 CU11 prior to Security Update 2, Exchange Server 2016 CU21 prior to Security Update 3, and Exchange Server 2016 CU22 prior to Security Update 2. Note that authentication is required to exploit this vulnerability. The specific flaw exists due to the fact that the deny list for the ChainedSerializationBinder had a typo whereby an entry was typo'd as System.Security.ClaimsPrincipal instead of the proper value of System.Security.Claims.ClaimsPrincipal. By leveraging this vulnerability, attacks can bypass the ChainedSerializationBinder's deserialization deny list and execute code as NT AUTHORITY\SYSTEM. Tested against Exchange Server 2019 CU11 SU0 on Windows Server 2019, and Exchange Server 2016 CU22 SU0 on Windows Server 2016.

tags | exploit, remote, arbitrary
systems | windows
advisories | CVE-2021-42321
SHA-256 | 12eb99965a3f9b7bfde5c2c3d85628bf4f85bbe42475b654e2c35b7e33a8ccaa
Microsoft IIS WebDav ScStoragePathFromUrl Overflow
Posted May 11, 2017
Authored by Dominic Chell, FireFart, Zhiniang Peng, Chen Wu, zcgonvh, Rich Whitcroft | Site metasploit.com

Buffer overflow in the ScStoragePathFromUrl function in the WebDAV service in Internet Information Services (IIS) 6.0 in Microsoft Windows Server 2003 R2 allows remote attackers to execute arbitrary code via a long header beginning with "If: <http://" in a PROPFIND request, as exploited in the wild in July or August 2016. Original exploit by Zhiniang Peng and Chen Wu.

tags | exploit, remote, web, overflow, arbitrary
systems | windows
advisories | CVE-2017-7269
SHA-256 | dd14beacc3e87b7064dc160534d469a79690ec06c3cb5fdddd8acbce04733db8
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