SYSTEM code execution via unqualified DLL imports
Published May 14, 2020 · Updated Aug 4, 2024
Uncontrolled DLL search paths in Opto 22 SoftPAC 9.6 and earlier allow attackers to execute code when the Windows service starts. The service executable imports multiple DLLs without absolute paths, allowing Windows search-order resolution to select attacker-replaced libraries. Exploitation requires placing a malicious DLL and inducing a service start; the loaded code runs as SYSTEM and can control the host.
Summary
What happened
Uncontrolled DLL search paths in Opto 22 SoftPAC 9.6 and earlier allow attackers to execute code when the Windows service starts. The service executable imports multiple DLLs without absolute paths, allowing Windows search-order resolution to select attacker-replaced libraries. Exploitation requires placing a malicious DLL and inducing a service start; the loaded code runs as SYSTEM and can control the host.
The record
- CVE
- CVE-2020-10616
- Published
- May 14, 2020
- Updated
- Aug 4, 2024
- Vendor
- Opto 22
- Product
- SoftPAC
- Classifications
- CWE-427, T1574.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 14, 2020Exploitation reportedTeam82 laboratory SoftPAC exploit chain
- May 14, 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=SoftPAC Project Version 9.6 and prior
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
- Team82 SoftPAC chained proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- Team82 laboratory SoftPAC exploit chainexploit chain
Technologies
Your stack
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Your stack
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