CVE-2020-27743 - Vulnerability Details - OpenCVE

Description

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.

Published: 2020-10-26

Score: 9.8 Critical

EPSS: 1.7% Low

KEV: No

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:pam_tacplus_project:pam_tacplus:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2020-20247	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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.01736.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/kravietz/pam_tacplus/pull/163
https://tools.ietf.org/html/rfc8907

History

No history.

Subscriptions

Pam Tacplus Project Pam Tacplus

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-10-26T21:40:19.000Z

Updated: 2024-08-04T16:18:45.595Z

Reserved: 2020-10-26T00:00:00.000Z

Link: CVE-2020-27743

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-10-26T22:15:13.203

Modified: 2026-06-17T03:09:33.507

Link: CVE-2020-27743

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-330
Use of Insufficiently Random Values

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