SB2012111109 - Permissions, Privileges, and Access Controls in ISC INN
Published: November 11, 2012 Updated: August 11, 2020
Security Bulletin ID
SB2012111109
Severity
Medium
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) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2012-3523)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The STARTTLS implementation in nnrpd in INN before 2.5.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.
Remediation
Install update from vendor's website.