#VU59335 Deserialization of Untrusted Data in Enterprise Vault - CVE-2021-44677

Vulnerability identifier: #VU59335

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-44677

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Enterprise Vault
Server applications / Other server solutions

Vendor: Veritas Technologies

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data within EVExchangeWebServicesProxy.exe. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Enterprise Vault: 12.0 - 14.1.2

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External links
https://www.veritas.com/content/support/en_US/security/VTS21-003
https://www.zerodayinitiative.com/advisories/ZDI-21-1592/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.