Tor up to 0.1.2.15 ControlPort torrc access control

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Tor. It has been classified as problematic. This affects an unknown part of the component ControlPort. Performing a manipulation of the argument torrc results in access control. This vulnerability is known as CVE-2007-4174. Furthermore, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Tor (Network Encryption Software). This affects an unknown code block of the component ControlPort. The manipulation of the argument torrc with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Tor before 0.1.2.16, when ControlPort is enabled, does not properly restrict commands to localhost port 9051, which allows remote attackers to modify the torrc configuration file, compromise anonymity, and have other unspecified impact via HTTP POST data containing commands without valid authentication, as demonstrated by an HTML form (1) hosted on a web site or (2) injected by a Tor exit node.

The bug was discovered 09/01/2007. The weakness was published 08/03/2007 with Tor (Website). The advisory is shared at archives.seul.org. This vulnerability is uniquely identified as CVE-2007-4174 since 08/07/2007. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 27726 (Fedora 7 : tor-0.1.2.16-1.fc7 (2007-1674)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at tor.eff.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (35784), Tenable (27726), SecurityFocus (BID 25188†), OSVDB (36271†) and Secunia (SA26301†). Similar entry is available at VDB-37228. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 27726
Nessus Name: Fedora 7 : tor-0.1.2.16-1.fc7 (2007-1674)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 861562
OpenVAS Name: Family Connections argv[1] Parameter Remote Arbitrary Command Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: tor.eff.org

Timelineinfo

08/02/2007 🔍
08/03/2007 +1 days 🔍
08/03/2007 +0 days 🔍
08/03/2007 +0 days 🔍
08/06/2007 +2 days 🔍
08/07/2007 +1 days 🔍
08/07/2007 +0 days 🔍
08/07/2007 +0 days 🔍
08/19/2007 +12 days 🔍
08/20/2007 +1 days 🔍
09/01/2007 +12 days 🔍
11/06/2007 +66 days 🔍
11/13/2007 +7 days 🔍
07/30/2019 +4277 days 🔍

Sourcesinfo

Advisory: archives.seul.org
Organization: Tor
Status: Confirmed

CVE: CVE-2007-4174 (🔍)
GCVE (CVE): GCVE-0-2007-4174
GCVE (VulDB): GCVE-100-3225
X-Force: 35784 - Tor ControlPort security bypass, Medium Risk
SecurityFocus: 25188 - Tor ControlPort Missing Authentication Unauthorized Access Vulnerability
Secunia: 26301
OSVDB: 36271 - Tor Unspecified ControlPort torrc Manipulation
SecurityTracker: 1018510
Vulnerability Center: 16793 - Tor Improper Handling of Multiple ControlPort Authentication Attempts Allows Service Privileges, Medium
Vupen: ADV-2007-2768

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

Entryinfo

Created: 08/20/2007 08:42
Updated: 07/30/2019 09:54
Changes: 08/20/2007 08:42 (98), 07/30/2019 09:54 (2)
Complete: 🔍
Cache ID: 216:268:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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