#VU64997 Cryptographic issues in Kerberos 5 - CVE-2010-4020 

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Main Vulnerability Database Vulnerabilities #VU64997

#VU64997 Cryptographic issues in Kerberos 5 - CVE-2010-4020

Published: July 7, 2022


Vulnerability identifier: #VU64997
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2010-4020
CWE-ID: CWE-310
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Kerberos 5
Software vendor:
MIT

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to MIT Kerberos 5 does not reject RC4 key-derivation checksums. A remote user can forge a AD-SIGNEDPATH or AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte stream-cipher operations.


Remediation

Install updates from vendor's website.

External links