CVE-2020-15264
To exploit the vulnerability, place a DLL in this directory that a privileged service is looking for.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Boxstarter installer before version 2.13.0 configures C:\ProgramData\Boxstarter to be in the system-wide PATH environment variable. However, this directory is writable by normal, unprivileged users. To exploit the vulnerability, place a DLL in this directory that a privileged service is looking for. For example, WptsExtensions.dll When Windows starts, it'll execute the code in DllMain() with SYSTEM privileges. Any unprivileged user can execute code with SYSTEM privileges. The issue is fixed in version 3.13.0
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.55% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-73, CWE-668
- Affected
- chocolatey/boxstarter
- Source
- security-advisories@github.com
References
- https://github.com/chocolatey/boxstarter/commit/67e320491813550b48900e87105a34ceefdcf633Patch, Third Party Advisory
- https://github.com/chocolatey/boxstarter/security/advisories/GHSA-rpgx-h675-r3jfThird Party Advisory
- https://www.kb.cert.org/vuls/id/208577Third Party Advisory
- https://github.com/chocolatey/boxstarter/commit/67e320491813550b48900e87105a34ceefdcf633Patch, Third Party Advisory
- https://github.com/chocolatey/boxstarter/security/advisories/GHSA-rpgx-h675-r3jfThird Party Advisory
- https://www.kb.cert.org/vuls/id/208577Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.