VDB-11716 · #7814 · OSVDB 101660

Tor 0.2.4.7-alpha Relay Node denial of service

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 (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
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.
6.5$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Tor 0.2.4.7-alpha. Affected by this issue is some unknown functionality of the component Relay Node. Executing a manipulation can lead to denial of service. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Tor 0.2.4.7-alpha (Network Encryption Software). It has been declared as critical. This vulnerability affects an unknown code block of the component Relay Node. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was released 12/29/2012 as #7814 as not defined bug report (Bugtraq). The advisory is shared for download at trac.torproject.org. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

Upgrading to version 0.2.4.8-alpha eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (101660†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
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: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Tor 0.2.4.8-alpha

Timelineinfo

12/29/2012 🔍
12/29/2012 +0 days 🔍
01/14/2013 +16 days 🔍
01/07/2014 +358 days 🔍
03/24/2019 +1902 days 🔍

Sourcesinfo

Advisory: #7814
Status: Not defined

GCVE (VulDB): GCVE-100-11716
OSVDB: 101660

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/07/2014 08:28
Updated: 03/24/2019 09:36
Changes: 01/07/2014 08:28 (46), 03/24/2019 09:36 (2)
Complete: 🔍
Committer: olku
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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