Charybdis up to 3.5.2 modules/m_sasl.c m_authenticate Authenticate improper authorization

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Charybdis up to 3.5.2. It has been declared as critical. This issue affects the function m_authenticate of the file modules/m_sasl.c. Such manipulation of the argument Authenticate leads to improper authorization. This vulnerability is uniquely identified as CVE-2016-7143. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Charybdis up to 3.5.2 and classified as critical. Affected by this issue is the function m_authenticate of the file modules/m_sasl.c. The manipulation of the argument AUTHENTICATE with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The m_authenticate function in modules/m_sasl.c in Charybdis before 3.5.3 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.

The weakness was disclosed 09/21/2016 by Antoine (Website). The advisory is shared for download at debian.org. This vulnerability is handled as CVE-2016-7143 since 09/05/2016. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1548.002.

The vulnerability scanner Nessus provides a plugin with the ID 93354 (Debian DSA-3661-1 : charybdis - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175828 (Debian Security Update for charybdis (DSA 3661-1)).

Upgrading to version 3.5.3 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (93354) and SecurityFocus (BID 92761†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
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: 93354
Nessus Name: Debian DSA-3661-1 : charybdis - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703661
OpenVAS Name: Debian Security Advisory DSA 3661-1 (charybdis - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Charybdis 3.5.3
Patch: github.com

Timelineinfo

09/04/2016 🔍
09/05/2016 +1 days 🔍
09/06/2016 +1 days 🔍
09/08/2016 +2 days 🔍
09/21/2016 +13 days 🔍
09/21/2016 +0 days 🔍
09/22/2016 +1 days 🔍
09/23/2024 +2923 days 🔍

Sourcesinfo

Advisory: 818a3fda944b26d4814132cee14cfda4ea4aa824
Researcher: Antoine
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7143 (🔍)
GCVE (CVE): GCVE-0-2016-7143
GCVE (VulDB): GCVE-100-91832

OVAL: 🔍

SecurityFocus: 92761 - Charybdis CVE-2016-7143 SSL Certificate Spoofing Vulnerability

Entryinfo

Created: 09/22/2016 09:23
Updated: 09/23/2024 19:03
Changes: 09/22/2016 09:23 (63), 04/22/2019 20:16 (14), 09/19/2022 14:46 (5), 09/23/2024 19:03 (16)
Complete: 🔍
Cache ID: 216::103

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