CVE-2013-1362
HighPublic exploitIncomplete blacklist vulnerability in nrpc.c in Nagios Remote Plug-In Executor (NRPE) before 2.14 might allow remote attackers to execute arbitrary shell commands via "$()" shell metacharacters, which are processed by bash.
Published Jul 9, 2013 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2013-1362, UBUNTU-CVE-2013-1362
Key Facts
Patch immediately- CVE-2013-1362 is a high-severity vulnerability (CVSS 7.5 v2) affecting Remote Plug In Executor (Nagios), Opensuse, nrpe (arch) and 2 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 66% probability of exploitation in the next 30 days.
- Fixed versions are available, including Remote Plug In Executor 2.13, nagios-nrpe 2.13-3, nagios-plugins-nrpe 2.14-3.5.amzn1.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
66%
Higher than 99.2% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2013-1362 brief as a PDF
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Description
Incomplete blacklist vulnerability in nrpc.c in Nagios Remote Plug-In Executor (NRPE) before 2.14 might allow remote attackers to execute arbitrary shell commands via "$()" shell metacharacters, which are processed by bash.
Affected Products
46 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Remote Plug In ExecutorNagios | 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0 | 2.13 |
| OpensuseOpensuse | 11.4, 12.1, 12.2 | n/a |
| nrpearch | See advisory | 3.2.1-3 |
| nagios-nrpedebian | See advisory | 2.13-3 |
| nagios-plugins-nrpeamazon | See advisory | 2.14-3.5.amzn1 |
Patched Releases
Remote Plug In Executor
2.13
nagios-nrpe
2.13-3
nagios-plugins-nrpe
2.14-3.5.amzn1
nrpe
2.14-3.5.amzn1, 3.2.1-3
Timeline
Publicly disclosed
Jul 9, 2013
Last updated
Aug 4, 2026
Weakness Type
- CWE-20 Improper Input Validation
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2013-1362
- advisoryhttps://ubuntu.com/security/CVE-2013-1362
- advisoryhttps://www.cve.org/CVERecord?id=CVE-2013-1362
- exploitMSF nagios_nrpe_arguments.rb
- exploitExploitDB-24955
FAQ
Common Questions.
Incomplete blacklist vulnerability in nrpc.c in Nagios Remote Plug-In Executor (NRPE) before 2.14 might allow remote attackers to execute arbitrary shell commands via "$()" shell metacharacters, which are processed by bash.
Affected: Remote Plug In Executor (Nagios) versions 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0; Opensuse versions 11.4, 12.1, 12.2; nrpe (arch), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Remote Plug In Executor 2.13, nagios-nrpe 2.13-3, nagios-plugins-nrpe 2.14-3.5.amzn1.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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