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Critical Vulnerabilities Patched in Ivanti Avalanche

By

Matthew Fagan, Access Point Consulting

By

Access Point Consulting

Summary

Ivanti has released a security advisory detailing several vulnerabilities being remediated with an update to Ivanti Avalanche. Two critical (CVSSv3: 9.8) heap overflow vulnerabilities have been patched in the WLAvalancheService (CVE-2024-29204) and WLInfoRailService (CVE-2024-24996) components of Ivanti Avalanche. These vulnerabilities allow for an unauthenticated remote attacker to execute arbitrary commands. An update to Ivanti Avalanche 6.4.3 will remediate these vulnerabilities as well as several others. Ivanti is currently not aware of any of their customers being exploited by these vulnerabilities.

Impact Assessment

Ivanti Avalanche is used as an MDM tool, so if that is compromised an attacker could have access to perform actions to any device managed by Ivanti Avalanche. Exploitation can also allow the attacker to open the door to other attacks as well as lateral movement throughout the environment. However, there are no reports of active exploitation and no evidence currently of proof-of-concept code in the wild.

Remediation

Ivanti recommends downloading the Avalanche installer and updating to the latest version of Avalanche 6.4.3. This will remediate the vulnerabilities.

You can follow the upgrade steps in this article as well. It provides a detailed installation guide.

Business Implications

Exploitation of these vulnerabilities will allow an attacker to execute arbitrary code execution against an MDM service. This could put all devices managed by this service at risk for attack as a backdoor can be created with this level of access. This could also potentially cause a denial-of-service condition preventing work from being performed on those devices causing business inefficiencies. Monetary and data loss are to be expected from exploitation.

Access Point Consulting Recommends

Patch: A patch is available which patches critical vulnerabilities, this should be done as soon as possible.

Associated Bulletins

https://nvd.nist.gov/vuln/detail/CVE-2024-29204

https://nvd.nist.gov/vuln/detail/CVE-2024-24996

https://forums.ivanti.com/s/article/Avalanche-6-4-3-Security-Hardening-and-CVEs-addressed?language=en_US

 

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