CVE Vulnerability

CVE-2021-36798

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.cobaltstrike.com/releasenotes.txt Release Notes Vendor Advisory
https://labs.sentinelone.com/hotcobalt-new-cobalt-strike-dos-vulnerability-that-lets-you-halt-operations/ Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:helpsystems:cobalt_strike:4.3:*:*:*:*:*:*:*
cpe:2.3:a:helpsystems:cobalt_strike:4.2:*:*:*:*:*:*:*
Information

Published : 2021-08-09 01:15

Updated : 2021-08-17 12:49

NVD link : CVE-2021-36798

Mitre link : CVE-2021-36798

Products Affected
No products.
CWE
CWE-770