Mattermost Server up to 6.3.2 SAML Login stack-based overflow

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 (≈)
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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.
6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Mattermost Server up to 6.3.2. It has been classified as critical. This impacts an unknown function of the component SAML Login. Performing a manipulation results in stack-based overflow. This vulnerability is reported as CVE-2022-0903. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Mattermost Server up to 6.3.2. It has been classified as critical. This affects an unknown code block of the component SAML Login. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 03/11/2022. The advisory is shared at mattermost.com. This vulnerability is uniquely identified as CVE-2022-0903 since 03/09/2022. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/11/2022).

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (Mattermost, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/09/2022 🔍
03/11/2022 +2 days 🔍
03/11/2022 +0 days 🔍
03/13/2022 +2 days 🔍

Sourcesinfo

Advisory: mattermost.com
Status: Not defined

CVE: CVE-2022-0903 (🔍)
GCVE (CVE): GCVE-0-2022-0903
GCVE (VulDB): GCVE-100-194577

Entryinfo

Created: 03/11/2022 08:22
Updated: 03/13/2022 07:53
Changes: 03/11/2022 08:22 (47), 03/13/2022 07:53 (1)
Complete: 🔍
Cache ID: 216:356:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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