Nagios up to 4.0.2 process_cgivars memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Nagios. It has been classified as problematic. Impacted is the function process_cgivars. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2013-7205. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Nagios (Log Management Software). This issue affects the function process_cgivars. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, and availability. The summary by CVE is:

Off-by-one error in the process_cgivars function in contrib/daemonchk.c in Nagios Core 3.5.1, 4.0.2, and earlier allows remote authenticated users to obtain sensitive information from process memory or cause a denial of service (crash) via a long string in the last key value in the variable list, which triggers a heap-based buffer over-read.

The weakness was released 01/15/2014 (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2013-7205 since 12/23/2013. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 71961 (FreeBSD : nagios -- denial of service vulnerability (ba04a373-7d20-11e3-8992-00132034b086)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176788 (Debian Security Update for nagios3 (DLA 1615-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (89945), Tenable (71961), SecurityFocus (BID 64489†), Secunia (SA55976†) and Vulnerability Center (SBV-43025†). Entries connected to this vulnerability are available at VDB-11588, VDB-11589 and VDB-66477. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 71961
Nessus Name: FreeBSD : nagios -- denial of service vulnerability (ba04a373-7d20-11e3-8992-00132034b086)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/23/2013 🔍
12/23/2013 +0 days 🔍
12/23/2013 +0 days 🔍
01/15/2014 +23 days 🔍
01/15/2014 +0 days 🔍
01/19/2014 +4 days 🔍
03/24/2015 +429 days 🔍
01/31/2022 +2505 days 🔍

Sourcesinfo

Advisory: DLA 1615-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-7205 (🔍)
GCVE (CVE): GCVE-0-2013-7205
GCVE (VulDB): GCVE-100-66071
X-Force: 89945
SecurityFocus: 64489 - Nagios 'process_cgivars()' Function Off-By-One Error Denial Of Service Vulnerability
Secunia: 55976
Vulnerability Center: 43025 - Nagios Core Remote Information Disclosure and DoS Vulnerability in process_cgivars(), Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/31/2022 09:05
Changes: 03/24/2015 15:54 (61), 05/19/2017 11:32 (5), 01/31/2022 09:02 (3), 01/31/2022 09:05 (1)
Complete: 🔍
Cache ID: 216::103

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