libtac in pam_tacplus through 1.5.1 lacks a check for a failure of…
Priority MEDIUM 46CWE-330Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
libtac in pam_tacplus through 1.5.1 lacks a check for a failure of RAND_bytes()/RAND_pseudo_bytes(). This could lead to use of a non-random/predictable session_id.
Why it matters now
EPSS 0.01736 77th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pam_tacplus_project:pam_tacplus:*:*:*:*:*:*:*:* | up to 1.5.1 | Vulnerable | Pam Tacplus Project |
- cpe:2.3:a:pam_tacplus_project:pam_tacplus:*:*:*:*:*:*:*:* Versions up to 1.5.1 Vulnerable ·Pam Tacplus Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-27743
References
More Pam Tacplus Project Pam Tacplus vulnerabilities
- TI-2016-09192 In pam_tacplus.c in pam_tacplus before 1.4.1, pam_sm_acct_mgmt does not zero out the arep data structure. CVSS 3.1CRITICAL 9.8
- TI-2020-10862 In support.c in pam_tacplus 1.3.8 through 1.5.1, the TACACS+ shared secret gets logged… CVSS 3.1HIGH 7.5
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences