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zdiPiotr Bazydlo (@chudypb) of Trend Micro Zero Day InitiativeZDI-24-374
HistoryApr 23, 2024 - 12:00 a.m.

Ivanti Avalanche WLAvalancheService Out-Of-Bounds Read Information Disclosure Vulnerability

2024-04-2300:00:00
Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
www.zerodayinitiative.com
4
ivanti avalanche
wlavalancheservice
out-of-bounds read
vulnerability
remote attackers
information disclosure
authentication
tcp port 1777
user-supplied data
allocated buffer
arbitrary code

5.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

29.0%

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Ivanti Avalanche. Authentication is not required to exploit this vulnerability. The specific flaw exists within the WLAvalancheService, which listens on TCP port 1777 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of SYSTEM.

5.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

29.0%

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