matrix-hookshot up to 4.4.x generic.allowJsTransformationFunctions injection

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in matrix-hookshot up to 4.4.x and classified as problematic. This issue affects the function generic.allowJsTransformationFunctions. The manipulation leads to injection. This vulnerability is documented as CVE-2023-43656. The attack needs to be performed locally. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in matrix-hookshot up to 4.4.x. This issue affects the function generic.allowJsTransformationFunctions. The manipulation with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

matrix-hookshot is a Matrix bot for connecting to external services like GitHub, GitLab, JIRA, and more. Instances that have enabled transformation functions (those that have `generic.allowJsTransformationFunctions` in their config), may be vulnerable to an attack where it is possible to break out of the `vm2` sandbox and as a result Hookshot will be vulnerable to this. This problem is only likely to affect users who have allowed untrusted users to apply their own transformation functions. If you have only enabled a limited set of trusted users, this threat is reduced (though not eliminated). Version 4.5.0 and above of hookshot include a new sandbox library which should better protect users. Users are advised to upgrade. Users unable to upgrade should disable `generic.allowJsTransformationFunctions` in the config.

The weakness was released 09/28/2023 as GHSA-fr97-pv6w-4cj6. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-43656 since 09/20/2023. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1055 for this issue.

Upgrading to version 4.5.0 eliminates this vulnerability. Applying the patch dc126afa6af86d66aefcd23a825326f405bcc894 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.0
NVD Vector: 🔍

CNA Base Score: 5.6
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: matrix-hookshot 4.5.0
Patch: dc126afa6af86d66aefcd23a825326f405bcc894

Timelineinfo

09/20/2023 🔍
09/28/2023 +8 days 🔍
09/28/2023 +0 days 🔍
10/21/2023 +23 days 🔍

Sourcesinfo

Advisory: GHSA-fr97-pv6w-4cj6
Status: Confirmed

CVE: CVE-2023-43656 (🔍)
GCVE (CVE): GCVE-0-2023-43656
GCVE (VulDB): GCVE-100-240761

Entryinfo

Created: 09/28/2023 07:25
Updated: 10/21/2023 11:40
Changes: 09/28/2023 07:25 (51), 10/21/2023 11:40 (11)
Complete: 🔍
Cache ID: 216::103

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

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