stunnel up to 4.54 NTLM Authentication code injection

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in stunnel. This affects an unknown function of the component NTLM Authentication. Such manipulation leads to code injection. This vulnerability is listed as CVE-2013-1762. There is no available exploit.

Detailsinfo

A vulnerability was found in stunnel and classified as critical. Affected by this issue is an unknown code block of the component NTLM Authentication. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are enabled, does not correctly perform integer conversion, which allows remote proxy servers to execute arbitrary code via a crafted request that triggers a buffer overflow.

The weakness was presented 03/08/2013 by Wolfgang Ettlingers (Website). The advisory is available at stunnel.org. This vulnerability is handled as CVE-2013-1762 since 02/19/2013. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 68803 (Oracle Linux 6 : stunnel (ELSA-2013-0714)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166647 (SUSE Enterprise Linux Security Update for stunnel (SUSE-SU-2013:0709-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (82522), Tenable (68803), SecurityFocus (BID 57755†) and Vulnerability Center (SBV-38893†). See VDB-7598 for similar entry. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.6
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.6
VulDB Temp Score: 8.6
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: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 68803
Nessus Name: Oracle Linux 6 : stunnel (ELSA-2013-0714)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892664
OpenVAS Name: Debian Security Advisory DSA 2664-1 (stunnel4 - buffer overflow
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/05/2013 🔍
02/19/2013 +14 days 🔍
03/03/2013 +12 days 🔍
03/08/2013 +5 days 🔍
03/08/2013 +0 days 🔍
03/25/2013 +17 days 🔍
07/12/2013 +109 days 🔍
03/24/2015 +620 days 🔍
12/27/2024 +3566 days 🔍

Sourcesinfo

Advisory: RHSA-2013:0714
Researcher: Wolfgang Ettlingers
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-1762 (🔍)
GCVE (CVE): GCVE-0-2013-1762
GCVE (VulDB): GCVE-100-63698

OVAL: 🔍
IAVM: 🔍

X-Force: 82522
SecurityFocus: 57755 - OpenSSL CVE-2012-2686 Remote Denial of Service Vulnerability
Vulnerability Center: 38893 - stunnel Improper Integer Conversion Allows Remote Code Execution via a Crafted Request, High

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/27/2024 17:35
Changes: 03/24/2015 12:22 (67), 04/26/2017 17:44 (6), 12/30/2021 00:24 (3), 12/30/2021 00:34 (1), 12/30/2021 00:48 (2), 12/27/2024 17:35 (16)
Complete: 🔍
Cache ID: 216::103

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