Vulnerability in Ivanti Avalanche
CVE-2022-36980
This vulnerability allows remote attackers to bypass authentication 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 EnterpriseServer service. The issue results from the lack of proper locking when performing operations during authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-15528.
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.824 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.831 · newest: 0.824 · change: -0.007
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-22-785/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-36980?
- CVE-2022-36980 is a high-severity vulnerability in Ivanti Avalanche, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 8.1/10. Published 2023-03-29.
- How severe is CVE-2022-36980?
- High severity. CVSS v3 base score is 8.1 out of 10.