SB2017082508 - Authentication bypass in Kerberos
Published: August 25, 2017 Updated: April 25, 2018
Security Bulletin ID
SB2017082508
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Authentication bypass (CVE-ID: CVE-2017-7562)
The vulnerability allows a remote authenticated attacker to write arbitrary files on the target system.The weakness exists due to an authentication bypass in the way krb5's certauth interface handled the validation of client certificates. A remote attacker can impersonate arbitrary principals under rare and erroneous circumstances.
Remediation
Install update from vendor's website.