Tor up to 0.4.6.4 Relay access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Tor up to 0.4.6.4. This impacts an unknown function of the component Relay Handler. The manipulation leads to access control. This vulnerability is referenced as CVE-2021-34548. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Tor up to 0.4.6.4 (Network Encryption Software). This issue affects some unknown functionality of the component Relay Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability.

The weakness was published 06/29/2021. The advisory is shared at gitlab.torproject.org. The identification of this vulnerability is CVE-2021-34548. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 0.4.6.5 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: Tor 0.4.6.5

Timelineinfo

06/10/2021 🔍
06/29/2021 +19 days 🔍
06/29/2021 +0 days 🔍
07/03/2021 +4 days 🔍

Sourcesinfo

Advisory: gitlab.torproject.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-34548 (🔍)
GCVE (CVE): GCVE-0-2021-34548
GCVE (VulDB): GCVE-100-177725

Entryinfo

Created: 06/29/2021 14:33
Updated: 07/03/2021 14:50
Changes: 06/29/2021 14:33 (38), 07/03/2021 14:50 (6)
Complete: 🔍
Cache ID: 216::103

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