Netdata is an open source observability tool. Prior to 2.10.4, the setuid-root ndsudo helper command fail2ban-client-status-socket in src/collectors/utils/ndsudo.c accepts a caller-controlled --socket_path from the low-privileged netdata service account. The account can direct root fail2ban-client to a malicious UNIX socket, and fail2ban/client/csocket.py CSocket.receive() passes the returned data to pickle.loads(), allowing attacker-controlled code to execute as root on systems with fail2ban-client installed.
This issue is fixed in version 2.10.4 and nightly build 2.10.0-782-nightly.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
netdata:netdata
References 4
https://github.com/netdata/netdata/commit/9bced8d46464bd0fe01b0b5f8c63c4ac24e9b…
security-advisories@github.com
https://github.com/netdata/netdata/pull/22745
security-advisories@github.com
https://github.com/netdata/netdata/releases/tag/v2.10.4
security-advisories@github.com
https://github.com/netdata/netdata/security/advisories/GHSA-qwh9-pq27-993w
security-advisories@github.com