CVE-2011-2921 : ktsuss versions 1.4 and prior has the uid set to root and does not drop privileg

ktsuss versions 1.4 and prior has the uid set to root and does not drop privileges prior to executing user specified commands, which can result in command execution with root privileges.

Published 2019-11-19 17:15:11

Updated 2019-11-21 18:55:05

Source Red Hat, Inc.

View at NVD, CVE.org

Products affected by CVE-2011-2921

Ktsuss Project » Ktsuss
Versions up to, including, (<=) 1.4
cpe:2.3:a:ktsuss_project:ktsuss:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2011-2921

EPSS FAQ

71.59%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 99 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2011-2921

ktsuss suid Privilege Escalation

Disclosure Date: 2011-08-13

First seen: 2020-04-26

exploit/linux/local/ktsuss_suid_priv_esc

This module attempts to gain root privileges by exploiting a vulnerability in ktsuss versions 1.4 and prior. The ktsuss executable is setuid root and does not drop privileges prior to executing user specified commands, resulting in command executio

More information

CVSS scores for CVE-2011-2921

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
10.0	HIGH	AV:N/AC:L/Au:N/C:C/I:C/A:C	10.0	10.0	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2011-2921

CWE-273 Improper Check for Dropped Privileges

The product attempts to drop privileges but does not check or incorrectly checks to see if the drop succeeded.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-2921

http://packetstormsecurity.com/files/154307/ktsuss-Suid-Privilege-Escalation.html

ktsuss Suid Privilege Escalation ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry
https://access.redhat.com/security/cve/cve-2011-2921

Red Hat Customer Portal
Broken Link;Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2011-2921

CVE-2011-2921
Third Party Advisory

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