Description
A Denial-of-Service (DoS) vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It allows remote attackers to crash the C2 server thread and block beacons' communication with it.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 2 repositories
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JamVayne/CobaltStrikeDos ★ 103 · Sep 6, 2021
CVE-2021-36798: CobaltStrike < 4.4 Dos
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M-Kings/CVE-2021-36798 ★ 36 · Aug 19, 2021
Cobalt Strike < 4.4 dos CVE-2021-36798
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.