SCO UnixWare pkgadd and pkgrm privilege escalation

unixware-pkgadd-privilege-escalation (41200)

High Risk

Description:

SCO UnixWare could allow a local attacker to gain elevated privileges, caused by the improper filtering of environment variables by the pkgadd and pkgrm commands. By setting the environment variable to a certain value containing "dot dot" sequences (/../), a local attacker could exploit this vulnerability to overwrite or create system files and possibly execute arbitrary code on the system with root privileges.

*CVSS:

Base Score:	7.2
Access Vector:	Local
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete
Temporal Score:	5.3
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Privileges

Remedy:

Refer to SCOSA-2008.1 for patch, upgrade or suggested workaround information. See References.

References:

• SCOSA-2008.1: pkgadd(1M) Directory Traversal Vulnerability.
• The SCO Group Web site: UnixWare 7.1.4 > pkgadd(1M) security patch.
• BID-28236: SCO UnixWare 'pkgadd' Local Privilege Escalation Vulnerability
• CVE-2008-1343: Directory traversal vulnerability in (1) pkgadd and (2) pkgrm in SCO UnixWare 7.1.4 allows local users to gain privileges via unknown vectors.
• SA29370: UnixWare "pkgadd" Directory Traversal Vulnerability

Platforms Affected:

• SCO SCO UnixWare 7.1.4

Reported:

Feb 27, 2008

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