Sendmail debug (-d) option allows local users to gain root access

sendmail-debug-gain-root (7155)

High Risk

Description:

Sendmail could allow a local attacker to gain root access, caused by a vulnerability in the debug command. A local attacker can pass a large value in the debug (-d) command line option to gain root access to the system.

*CVSS:

Base Score:	7
Access Vector:	Local
Access Complexity:	Low
Authentication:	Not Required
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete
Temporal Score:	5.8
Exploitability:	Functional
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Sendmail (8.6.8 or later), as listed in CERT Advisory CA-1994-12. See References.

References:

• BugTraq Mailing List, Mon, 14 Mar 94 14:54:33 EST: sendmail -d problem (OLD yet still here).
• BugTraq Mailing List, Sun, 27 Mar 1994 14:25:34 -0700 (MST): sendmail exploit script - resend.
• BugTraq Mailing List, Tue, 15 Mar 1994 14:58:10 -0500: anyone know details?.
• CERT Advisory CA-1994-12: Sendmail Vulnerabilities.
• CVE-1999-1309: Sendmail before 8.6.7 allows local users to gain root access via a large value in the debug (-d) command line option.

Platforms Affected:

• Sendmail Sendmail 8.6
• Sendmail Sendmail 8.6.1
• Sendmail Sendmail 8.6.2
• Sendmail Sendmail 8.6.3
• Sendmail Sendmail 8.6.4
• Sendmail Sendmail 8.6.5
• Sendmail Sendmail 8.6.6

Reported:

Mar 14, 1994

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