Privilege escalation in Pi-Hole
CVE-2024-28247
The Pi-hole is a DNS sinkhole that protects your devices from unwanted content without installing any client-side software. A vulnerability has been discovered in Pihole that allows an authenticated user on the platform to read internal server files arbitrarily, and because the application runs from behind, reading files is done as a privileged user.If the URL that is in the list of "Adslists" begins with "file*" it is understood that it is updating from a local file, on the other hand if it does not begin with "file*" depending on the state of the response it does one thing or another. The problem resides in the update through local files. When updating from a file which contains non-domain lines, 5 of the non-domain lines are printed on the screen, so if you provide it with any file on the server which contains non-domain lines it will print them on the screen. This vulnerability is fixed by 5.18.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L.
EPSS exploit prediction
EPSS: 0.014 (71.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Pi-Hole — versions > 5.18
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/pi-hole/pi-hole/security/advisories/GHSA-95g6-7q26-mp9x (Exploit, Vendor Advisory)
- github.com/pi-hole/pi-hole/commit/f3af03174e676c20e502a92ed7842159f2fdeb7e (Patch)
Frequently asked questions
- What is CVE-2024-28247?
- CVE-2024-28247 is a high-severity vulnerability in Pi-Hole, classified under Information Disclosure. CVSS score: 7.6/10. Published 2024-03-27.
- How severe is CVE-2024-28247?
- High severity. CVSS v3 base score is 7.6 out of 10.
- Is CVE-2024-28247 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.