CVE-2020-27743

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

libtac en pam_tacplus versiones hasta 1.5.1, carece de una comprobación para un fallo de las funciones RAND_bytes()/RAND_pseudo_bytes(). Esto podría conllevar al uso de un session_id no aleatorio y predecible

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-10-26 CVE Reserved
2020-10-26 CVE Published
2023-07-12 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-330: Use of Insufficiently Random Values

CAPEC

References (2)

URL	Tag	Source
https://github.com/kravietz/pam_tacplus/pull/163	Third Party Advisory
https://tools.ietf.org/html/rfc8907	Technical Description

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pam Tacplus Project Search vendor "Pam Tacplus Project"		Pam Tacplus Search vendor "Pam Tacplus Project" for product "Pam Tacplus"				<= 1.5.1 Search vendor "Pam Tacplus Project" for product "Pam Tacplus" and version " <= 1.5.1"		-		Affected