Quantum Secular Labs / Blog / Advisories
CVE-2016-20014: In pam_tacplus.c in pam_tacplus before 1.4.1, pam_sm_acct_mgmt does not zero out the arep data structure.
CVE-2016-20014 is rated critical with a CVSS v3.1 base score of 9.8 and affects Pam Tacplus Project. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
In pam_tacplus.c in pam_tacplus before 1.4.1, pam_sm_acct_mgmt does not zero out the arep data structure.
Severity breakdown
CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Affected products
- Pam Tacplus Project: before 1.4.1