#VU70105 Buffer overflow in xrdp - CVE-2022-23479

Vulnerability identifier: #VU70105

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-2022-23479

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
xrdp
Other software / Other software solutions

Vendor: neutrinolabs

Description

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

The vulnerability exists due to a boundary error in xrdp_mm_chan_data_in() function. A remote attacker can trigger memory corruption 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

xrdp: 0.9.1 - 0.9.20

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External links
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-pgx2-3fjj-fqqh

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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.