Stunnel up to 3.24 SMTP/POP/NNTP format string

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

Summaryinfo

A vulnerability marked as critical has been reported in Stunnel. This impacts an unknown function of the component SMTP/POP/NNTP Handler. This manipulation causes format string. This vulnerability is tracked as CVE-2002-0002. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Stunnel. It has been declared as critical. Affected by this vulnerability is an unknown code of the component SMTP/POP/NNTP Handler. The manipulation with an unknown input leads to a format string vulnerability. The CWE definition for the vulnerability is CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Format string vulnerability in stunnel before 3.22 when used in client mode for (1) smtp, (2) pop, or (3) nntp allows remote malicious servers to execute arbitrary code.

The weakness was disclosed 01/31/2002 (Website). The advisory is shared at redhat.com. This vulnerability is known as CVE-2002-0002. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ANSI C. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 13912 (Mandrake Linux Security Advisory : stunnel (MDKSA-2002:004)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l.

Upgrading to version 3.22 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 databases at X-Force (7741), Exploit-DB (21192), Tenable (13912), SecurityFocus (BID 3748†) and Vulnerability Center (SBV-1215†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

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: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 13912
Nessus Name: Mandrake Linux Security Advisory : stunnel (MDKSA-2002:004)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Stunnel 3.22

Timelineinfo

12/22/2001 🔍
01/16/2002 +25 days 🔍
01/31/2002 +15 days 🔍
01/31/2002 +0 days 🔍
01/31/2002 +0 days 🔍
06/18/2003 +503 days 🔍
07/31/2004 +409 days 🔍
07/11/2014 +3632 days 🔍
12/16/2024 +3811 days 🔍

Sourcesinfo

Advisory: redhat.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2002-0002 (🔍)
GCVE (CVE): GCVE-0-2002-0002
GCVE (VulDB): GCVE-100-17917
X-Force: 7741
SecurityFocus: 3748 - STunnel Client Negotiation Protocol Format String Vulnerability
Vulnerability Center: 1215 - Stunnel Allows Arbitrary Code Execution, Medium

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

Entryinfo

Created: 07/11/2014 13:35
Updated: 12/16/2024 08:48
Changes: 07/11/2014 13:35 (64), 05/09/2019 23:28 (7), 12/16/2024 08:48 (19)
Complete: 🔍
Cache ID: 216::103

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

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