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.
5.1	$0-$5k	0.00

A vulnerability was found in Tor (Network Encryption Software). It has been rated as problematic. This issue affects an unknown code. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

Unspecified vulnerability in Tor before 0.2.0.34 allows directory mirrors to cause a denial of service via unknown vectors.

The bug was discovered 02/09/2009. The weakness was disclosed 03/17/2009 (Website). The advisory is shared at archives.seul.org. The identification of this vulnerability is CVE-2009-0937 since 03/17/2009. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 35672 (FreeBSD : tor -- multiple vulnerabilities (78f5606b-f9d1-11dd-b79c-0030843d3802)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (35672). The entries 47179, 47178 and 47176 are pretty similar.

Productinfo

Type

• Network Encryption Software

Name

• Tor

Version

• 0.2.0.4
• 0.2.0.5
• 0.2.0.6
• 0.2.0.10
• 0.2.0.11
• 0.2.0.12
• 0.2.0.13
• 0.2.0.14
• 0.2.0.15
• 0.2.0.16
• 0.2.0.17
• 0.2.0.18
• 0.2.0.19
• 0.2.0.20
• 0.2.0.21
• 0.2.0.22
• 0.2.0.23
• 0.2.0.24
• 0.2.0.25
• 0.2.0.26
• 0.2.0.27
• 0.2.0.28
• 0.2.0.29
• 0.2.0.30
• 0.2.0.31
• 0.2.0.32
• 0.2.0.33

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 35672
Nessus Name: FreeBSD : tor -- multiple vulnerabilities (78f5606b-f9d1-11dd-b79c-0030843d3802)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63352
OpenVAS Name: FreeBSD Ports: tor
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/09/2009 🔍
02/09/2009 +0 days 🔍
02/09/2009 +0 days 🔍
02/10/2009 +1 days 🔍
02/13/2009 +3 days 🔍
02/13/2009 +0 days 🔍
03/17/2009 +32 days 🔍
03/17/2009 +0 days 🔍
03/17/2009 +0 days 🔍
04/13/2009 +27 days 🔍
03/17/2015 +2164 days 🔍
09/01/2019 +1629 days 🔍

Sourcesinfo

Advisory: archives.seul.org
Status: Not defined

CVE: CVE-2009-0937 (🔍)
Vulnerability Center: 21540 - Tor Prior to 0.2.0.34 Unspecified Directory Mirrors DoS Vulnerability via Unknown Vectors, Low
SecurityFocus: 33713 - Tor Multiple Denial of Service Vulnerabilities
Secunia: 33880
OSVDB: 54022 - CVE-2009-0937 - Tor - Unspecified Issue

See also: 🔍

Entryinfo

Created: 03/17/2015 23:38
Updated: 09/01/2019 12:29
Changes: 03/17/2015 23:38 (70), 09/01/2019 12:29 (5)
Complete: 🔍

Discussion

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