Time-of-check time-of-use race condition in Ivanti Avalanche
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-36980
- 2026-10-03 Alias added: GHSA-29cx-mrrh-g7pc
References
More Ivanti Avalanche vulnerabilities
- TI-2022-17179 Deserialization of untrusted data in Ivanti Avalanche CVSS 3.1CRITICAL 9.8
- TI-2023-15842 Improper input validation in Ivanti Avalanche CVSS 3.1CRITICAL 9.8
- TI-2023-24891 Unrestricted file upload in Ivanti Avalanche CVSS 3.1CRITICAL 9.8
- TI-2023-15845 An unauthenticated attacker could achieve the code execution through a RemoteControl server. CVSS 3.1CRITICAL 9.8
- TI-2022-17186 Path traversal in Ivanti Avalanche CVSS 3.1CRITICAL 9.8
- TI-2023-24890 Unrestricted file upload in Ivanti Avalanche CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-36980 · CVE Program
- CVE-2022-36980 · NVD
- FIRST EPSS
- GHSA-29cx-mrrh-g7pc · GitHub Advisory Database · CC BY 4.0
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