CVE-2020-14971

Description

Pi-hole through 5.0 allows code injection in piholedhcp (the Static DHCP Leases section) by modifying Teleporter backup files and then restoring them. This occurs in settings.php. To exploit this, an attacker would request a backup of limited files via teleporter.php. These are placed into a .tar.gz archive. The attacker then modifies the host parameter in dnsmasq.d files, and then compresses and uploads these files again.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Third-Party Advisory co.za Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://blog.telspace.co.za/2020/06/pi-hole-code-injection-cve-2020-14971.html third party advisory
https://github.com/pi-hole/AdminLTE/pull/1443 third party advisory
https://github.com/pi-hole/AdminLTE/commit/c949516ee15fa6a9b0c8511cc4c4d6b0893f3e69 third party advisory patch
https://github.com/pi-hole/AdminLTE/commit/8f6e1365b6dec0ae1aa0b0b15b102c9133f347e5 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-14971?
CVE-2020-14971 has been scored as a high severity vulnerability.
How to fix CVE-2020-14971?
To fix CVE-2020-14971, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-14971 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-14971 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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