#VU75511 Path traversal in Avalanche - CVE-2023-28127

Vulnerability identifier: #VU75511

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-28127

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Avalanche
Server applications / SCADA systems

Vendor: Ivanti

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within the getLogFile function. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Avalanche: 6.1 - 6.3.0.555

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External links
https://www.zerodayinitiative.com/advisories/ZDI-23-455/
https://forums.ivanti.com/s/article/New-Avalanche-Landing-Page?language=en_US

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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