Simple Linux Utility for Resource Management sbcast privilege escalation

slurm-sbcast-priv-escalation (50126)

High Risk

Description:

Simple Linux Utility for Resource Management could allow a local attacker to gain elevated privileges on the system, caused by an error in the sbcast implementation when seting up supplemental groups. A local attacker could exploit this vulnerability to gain unauthorized access to restricted files with the supplemental group privileges of the slurmd daemon.

*CVSS:

Base Score:	4.6
Access Vector:	Local
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	3.4
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Privileges

Remedy:

Upgrade to the latest version of SLURM (1.3.15 or later), available from the SLURM Web site. See References.

References:

• Debian Bug report logs - #524980: SLURM daemons do not drop supplemental groups.
• SLURM Web site: Simple Linux Utility for Resource Management.
• BID-34638: SLURM 'sbcast' and 'strigger' Group Permissions Local Privilege Escalation Vulnerability
• CVE-2009-2084: Simple Linux Utility for Resource Management (SLURM) 1.2 and 1.3 before 1.3.14 does not properly set supplementary groups before invoking (1) sbcast from the slurmd daemon or (2) strigger from the slurmctld daemon, which might allow local SLURM users to modify files and gain privileges.
• DSA-1776: slurm-llnl -- programming error
• SA34831: SLURM Supplemental Groups Privilege Escalation Vulnerabilities

Platforms Affected:

• Simple Linux Utility for Resource Management Simple Linux Utility for Resource Management 1.2.35
• Simple Linux Utility for Resource Management Simple Linux Utility for Resource Management 1.3.13

Reported:

Apr 21, 2009

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