Squid Web Proxy up to 5.1.x certificate validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Squid Web Proxy up to 5.1.x. Impacted is an unknown function. The manipulation results in certificate validation. This vulnerability is known as CVE-2021-41611. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Squid Web Proxy up to 5.1.x (Firewall Software). Affected is an unknown part. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 10/18/2021 as GHSA-47m4-g3mv-9q5r. The advisory is available at github.com. This vulnerability is traded as CVE-2021-41611 since 09/25/2021. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

Upgrading to version 5.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at squid-cache.org. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Web Proxy 5.2
Patch: squid-cache.org

Timelineinfo

09/25/2021 🔍
10/18/2021 +23 days 🔍
10/18/2021 +0 days 🔍
10/22/2021 +4 days 🔍

Sourcesinfo

Vendor: squid-cache.org

Advisory: GHSA-47m4-g3mv-9q5r
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41611 (🔍)
GCVE (CVE): GCVE-0-2021-41611
GCVE (VulDB): GCVE-100-184530

Entryinfo

Created: 10/18/2021 13:28
Updated: 10/22/2021 12:45
Changes: 10/18/2021 13:28 (41), 10/22/2021 12:45 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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