Medium-integrity PowerShell execution via signature spoofing
Published Feb 8, 2024 · Updated Aug 2, 2024
Authentication bypass in Snow Inventory Agent for Windows 6.14.5 and earlier allows local users to spoof vendor-signed PowerShell scripts. The public record does not disclose the verification error; Flexera ties the flaw to the pre-7 .snow-ps1 path, which decrypts scripts and runs them at medium integrity. The vendor rates exploitation as requiring high local privileges; successful spoofing causes attacker-controlled content to be treated as a trusted medium-integrity script.
Summary
What happened
Authentication bypass in Snow Inventory Agent for Windows 6.14.5 and earlier allows local users to spoof vendor-signed PowerShell scripts. The public record does not disclose the verification error; Flexera ties the flaw to the pre-7 .snow-ps1 path, which decrypts scripts and runs them at medium integrity. The vendor rates exploitation as requiring high local privileges; successful spoofing causes attacker-controlled content to be treated as a trusted medium-integrity script.
The record
- CVE
- CVE-2023-7169
- Published
- Feb 8, 2024
- Updated
- Aug 2, 2024
- Vendor
- Snow Software
- Product
- Snow Inventory Agent
- Classifications
- CWE-290, CAPEC-473, T1059.001
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Feb 8, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=6.14.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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