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CVE-2013-1362· NVD / CVE Program· CNA mitre

Incomplete blacklist vulnerability in nrpc.c in Nagios Remote Plug-In Executor (NRPE) before 2.14 might allow remote attackers to execute ar

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.

HighCVSS 7.5 · v2.0—Weaponized Fix available
Published
Jul 9, 2013
Updated
Jun 16, 2026
EPSS
65.7% · 99th percentile
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Report tools

JSON

Action score

50

Plan

Add it to your regular patch cycle.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
20 / 30 · 65.7%

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

VendorProduct
nagiosremote plug in executor
opensuseopensuse

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • nagios remote plug in executorup to 2.13 inclusive
  • nagios remote plug in executor1.3
  • nagios remote plug in executor1.4
  • nagios remote plug in executor1.5
  • nagios remote plug in executor1.6
  • nagios remote plug in executor1.7
  • nagios remote plug in executor1.8
  • nagios remote plug in executor1.9
  • nagios remote plug in executor2.0
  • nagios remote plug in executor2.0b1
  • nagios remote plug in executor2.0b2
  • nagios remote plug in executor2.0b3
  • nagios remote plug in executor2.0b4
  • nagios remote plug in executor2.0b5
  • nagios remote plug in executor2.10
  • nagios remote plug in executor2.11
  • nagios remote plug in executor2.12
  • nagios remote plug in executor2.3
  • nagios remote plug in executor2.4
  • nagios remote plug in executor2.5

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12nagios-nrpebefore 2.13-32.13-3

Same product

nagios: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-6582Nagios NRPE 3.2.1 has a Heap-Based Buffer Overflow, as demonstrated by interpretation of a small negative number as a large positive number
    31Monitor
  • CVE-2020-6581Nagios NRPE 3.2.1 has Insufficient Filtering because, for example, nasty_metachars interprets \n as the character \ and the character n (not
    29Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:nagios-nrpe2.13-3 · Debian:12Package registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entryremote2013-04-12
Metasploit moduleexploit/linux/misc/nagios_nrpe_argumentsNagios Remote Plugin Executor Arbitrary Command Executionexploit2013-02-21

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Metasploit-139 d
  2. First PoC-89 d
  3. Published
  4. TodaySep 30, 2026+4831 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
P · data can be read
Integrity
P · data or configuration can be modified
Availability
P · the service can be disrupted
Attack complexity
Low
Confidentiality impact
P
Integrity impact
P
Availability impact
P

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records