CVE-2012-0955

software-properties incorrectly validated TLS certificates

Severity Score

7.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py. software-properties didn't check TLS certificates under python2 and only checked certificates under python3 if a valid certificate bundle was provided. Fixed in software-properties version 0.92.

software-properties era vulnerable a un ataque de tipo person-in-the-middle debido a una comprobación inapropiada del certificado TLS en el archivo softwareproperties/ppa.py. software-properties no comprobó los certificados TLS en python2 y solo comprobó los certificados en python3 si se proporcionó un paquete de certificado válido. Corregido en software-properties versión 0.92

*Credits: Marc Deslauriers

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2012-02-01 CVE Reserved
2020-12-02 CVE Published
2024-09-16 CVE Updated
2024-09-16 First Exploit
2024-09-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://launchpad.net/bugs/1036839	2024-09-16

URL	Date	SRC
https://code.launchpad.net/~cyphermox/software-properties/lp1036839/+merge/119753	2020-12-08

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canonical Search vendor "Canonical"		Software-properties Search vendor "Canonical" for product "Software-properties"				< 0.92 Search vendor "Canonical" for product "Software-properties" and version " < 0.92"		-		Affected