Vulnerability in Chocolatey Boxstarter
CVE-2020-15264
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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Chocolatey Boxstarter — versions < 2.13.0
Weakness classification (CWE)
References
- github.com/chocolatey/boxstarter/security/advisories/GHSA-rpgx-h675-r3jf (Third Party Advisory)
- github.com/chocolatey/boxstarter/commit/67e320491813550b48900e87105a34ceefdcf633 (Patch, Third Party Advisory)
- www.kb.cert.org/vuls/id/208577 (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2020-15264?
- CVE-2020-15264 is a high-severity vulnerability in Chocolatey Boxstarter, classified under External Control of File Name or Path. CVSS score: 8.0/10. Published 2020-10-20.
- How severe is CVE-2020-15264?
- High severity. CVSS v3 base score is 8.0 out of 10.