Man-in-the-middle attack in Git - CVE-2018-1000021
Published: March 14, 2018 / Updated: December 28, 2020
Vulnerability identifier: #VU11082
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2018-1000021
CWE-ID: CWE-300
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Git
Affected software:
Git
Git
Detailed vulnerability description
The vulnerability allows a remote unauthenticated attacker to execute arbitrary code on the target system.
The weakness exists due to insufficient validation of messages received from a Git server, which could include ANSI escape codes to the terminal on affected Git clients. A remote attacker can trick the victim into sending a request and interact with a malicious Git server and execute arbitrary code.
The weakness exists due to insufficient validation of messages received from a Git server, which could include ANSI escape codes to the terminal on affected Git clients. A remote attacker can trick the victim into sending a request and interact with a malicious Git server and execute arbitrary code.
How to mitigate CVE-2018-1000021
Install update from vendor's website.