Zoom Client 4.6.10 Message path traversal

Summaryinfo

A vulnerability, which was classified as critical, has been found in Zoom Client 4.6.10. The affected element is an unknown function of the component Message Handler. This manipulation causes path traversal. This vulnerability appears as CVE-2020-6109. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Zoom Client 4.6.10 (Unified Communication Software). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component Message Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An exploitable path traversal vulnerability exists in the Zoom client, version 4.6.10 processes messages including animated GIFs. A specially crafted chat message can cause an arbitrary file write, which could potentially be abused to achieve arbitrary code execution. An attacker needs to send a specially crafted message to a target user or a group to exploit this vulnerability.

The weakness was presented 06/08/2020. This vulnerability is known as CVE-2020-6109 since 01/07/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/09/2020). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

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

See VDB-156284 for similar entry. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Unified Communication Software

Vendor

• Zoom

Name

• Client

Version

• 4.6.10

License

• commercial

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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