Charybdis up to 3.5.2 modules/m_sasl.c m_authenticate AUTHENTICATE improper authorization
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.9 | $0-$5k | 0.00 |
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.
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 vulnerability database at Tenable (93354).
Product
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.1VulDB 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: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Improper authorizationCWE: CWE-285 / CWE-266
ATT&CK: T1548.002
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
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: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Charybdis 3.5.3
Patch: github.com
Timeline
09/04/2016 🔍09/05/2016 🔍
09/06/2016 🔍
09/08/2016 🔍
09/21/2016 🔍
09/21/2016 🔍
09/22/2016 🔍
09/19/2022 🔍
Sources
Advisory: 818a3fda944b26d4814132cee14cfda4ea4aa824Researcher: Antoine
Status: Not defined
Confirmation: 🔍
CVE: CVE-2016-7143 (🔍)
OVAL: 🔍
SecurityFocus: 92761 - Charybdis CVE-2016-7143 SSL Certificate Spoofing Vulnerability
Entry
Created: 09/22/2016 09:23Updated: 09/19/2022 14:46
Changes: 09/22/2016 09:23 (63), 04/22/2019 20:16 (14), 09/19/2022 14:46 (5)
Complete: 🔍
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