Deserialization in Ivanti Avalanche
CVE-2022-36977
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche 6.3.2.3490. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the Certificate Management Server service. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-15449.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.067 (93.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.067 · newest: 0.067 · change: 0.000
Affected products
- Ivanti Avalanche — versions 6.3.2.3490
Weakness classification (CWE)
References
- download.wavelink.com/Files/avalanche_v6.3.4_release_notes.txt (Release Notes)
- www.zerodayinitiative.com/advisories/ZDI-22-782/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-36977?
- CVE-2022-36977 is a critical-severity vulnerability in Ivanti Avalanche, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2023-03-29.
- How severe is CVE-2022-36977?
- Critical severity. CVSS v3 base score is 9.8 out of 10.