Stunnel 3.3/3.4a/3.7/3.8 ident Username format string

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.
9.4$0-$5k0.00

A vulnerability was found in Stunnel 3.3/3.4a/3.7/3.8. It has been classified as very critical. This affects an unknown functionality of the component ident Username Handler. The manipulation with an unknown input leads to a format string vulnerability. CWE is classifying the issue as CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Format string vulnerability in stunnel 3.8 and earlier allows attackers to execute arbitrary commands via a malformed ident username.

The weakness was published 02/12/2001 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2001-0060. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/10/2019).

Upgrading to version 3.9 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (5807).

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Format string
CWE: CWE-134 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

OpenVAS ID: 53773
OpenVAS Name: Debian Security Advisory DSA 009-1 (stunnel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Stunnel 3.9
McAfee IPS: 🔍
McAfee IPS Version: 🔍

Timelineinfo

12/18/2000 🔍
02/12/2001 +56 days 🔍
02/12/2001 +0 days 🔍
02/12/2001 +0 days 🔍
07/13/2003 +881 days 🔍
07/03/2014 +4008 days 🔍
05/10/2019 +1772 days 🔍

Sourcesinfo

Advisory: securityfocus.com
Status: Not defined

CVE: CVE-2001-0060 (🔍)
X-Force: 5807
Vulnerability Center: 1414 - Stunnel < 3.8 Allows Arbitrary Command Execution via Malformed ident Username, High
SecurityFocus: 2128 - Stunnel Local Arbitrary Command Execution Vulnerability

Entryinfo

Created: 07/03/2014 10:44
Updated: 05/10/2019 17:04
Changes: 07/03/2014 10:44 (59), 05/10/2019 17:04 (5)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

Might our Artificial Intelligence support you?

Check our Alexa App!