SYSTEM privilege escalation via renameable DLL directory
Published Jun 15, 2020 · Updated Aug 4, 2024
Local privilege escalation in Webroot SecureAnywhere before 9.0.28.48 allows local users to execute code as SYSTEM through DLL hijacking. The endpoint agent leaves %PROGRAMDATA%\WrData\PKG renameable, allowing a replacement directory containing a malicious WrUrl.dll or wrPhreshPhish.dll to be loaded when the protected service restarts. Exploitation requires local code execution and either a service crash or a restart, after which the malicious DLL runs with SYSTEM privileges.
Summary
What happened
Local privilege escalation in Webroot SecureAnywhere before 9.0.28.48 allows local users to execute code as SYSTEM through DLL hijacking. The endpoint agent leaves %PROGRAMDATA%\WrData\PKG renameable, allowing a replacement directory containing a malicious WrUrl.dll or wrPhreshPhish.dll to be loaded when the protected service restarts. Exploitation requires local code execution and either a service crash or a restart, after which the malicious DLL runs with SYSTEM privileges.
The record
- CVE
- CVE-2020-5755
- Published
- Jun 15, 2020
- Updated
- Aug 4, 2024
- Vendor
- Webroot
- Product
- Webroot SecureAnywhere
- Classifications
- CWE-732, T1574.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 15, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 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=All versions prior to version v9.0.28.48
What conditions does exploitation require?
What is affected?
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
- Tenable WrData DLL hijacking procedureproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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