Mattermost up to 3.5.1 /error Reflected cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Mattermost up to 3.5.1. This vulnerability affects unknown code of the file /error. The manipulation leads to cross site scripting (Reflected). It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mattermost up to 3.5.1 and classified as problematic. This issue affects some unknown processing of the file /error. The manipulation with an unknown input leads to a cross site scripting vulnerability (Reflected). Using CWE to declare the problem leads to CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. Impacted is integrity.

The bug was discovered 12/02/2016. The weakness was shared 01/18/2017 by Julien Ahrens as [RCESEC-2016-012] Mattermost <= 3.5.1 "/error" Unauthenticated Reflected Cross-Site Scripting / Content Injection as confirmed mailinglist post (Bugtraq). The advisory is shared at seclists.org. The vendor cooperated in the coordination of the public release. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 45 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 3.6.0 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

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

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Name: Reflected
Class: Cross site scripting / Reflected
CWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍

Upgrade: Mattermost 3.6.0

Timelineinfo

12/02/2016 🔍
12/02/2016 +0 days 🔍
12/12/2016 +10 days 🔍
01/16/2017 +35 days 🔍
01/18/2017 +2 days 🔍
01/19/2017 +1 days 🔍
07/25/2020 +1283 days 🔍

Sourcesinfo

Advisory: [RCESEC-2016-012] Mattermost <= 3.5.1 "/error" Unauthenticated Reflected Cross-Site Scripting / Content Injection
Researcher: Julien Ahrens
Status: Confirmed
Coordinated: 🔍
GCVE (VulDB): GCVE-100-95549

Entryinfo

Created: 01/19/2017 12:30
Updated: 07/25/2020 08:35
Changes: 01/19/2017 12:30 (48), 07/25/2020 08:35 (1)
Complete: 🔍
Cache ID: 216::103

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