PassMark PerformanceTest, BurnInTest, and OSForensics Improper Access Control via DirectIo64.sys
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.5epss 0.1%
exploitation probability
0.1%top 99% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain an improper access control vulnerability in the DirectIo64.sys kernel driver that allows unprivileged local users to perform privileged hardware operations by opening a handle to the device object created without a security descriptor. Attackers can issue IOCTLs through the permissive default Windows ACL applied to the device to access restricted hardware operations regardless of privilege or integrity level.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
PassMark Software · BurnInTestPassMark Software · OSForensicsPassMark Software · PerformanceTestpublic PoCs found — 1
cve_referencegithub.com/floppywiggler/directio64-disclosureunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://dkom.dev/posts/directio64-disclosure/https://github.com/floppywiggler/directio64-disclosurehttps://www.osforensics.com/whats-new.htmlhttps://www.passmark.com/products/burnintest/history.phphttps://www.passmark.com/products/performancetest/history.phphttps://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-improper-access-control-via-directio64-sys