Vulnerability identifier: #VU60850

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21938

CWE-ID: CWE-193

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ImageGear
Web applications / Modules and components for CMS

Vendor: Accusoft Corporation

Description

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

The vulnerability exists due to an off-by-one error in the Palette box parser functionality. A remote attacker can send a specially crafted file, trigger an off-by-one error and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ImageGear: 19.10

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External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1367

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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.