Permissions, Privileges, and Access Controls in Pi-hole - CVE-2021-29449
Published: April 20, 2021 / Updated: July 29, 2021
Vulnerability identifier: #VU52368
CSH Severity: Low
CVSS v4.0: 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/E:A/U:Clear
CVE-ID: CVE-2021-29449
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vendor: Pi-hole
Affected software:
Pi-hole
Pi-hole
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in the RemoveCustomCNAMERecord, RemoveCustomDNSAddress and RemoveDHCPStaticAddress functions. A local user can gain elevated privileges on the target system.
How to mitigate CVE-2021-29449
Install updates from vendor's website.