net-snmp Net Snmp up to 5.1 Access Restriction snmplib/snmpUDPDomain.c netsnmp_udp_fmtaddr input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in net-snmp Net Snmp up to 5.1 and classified as critical. Affected by this issue is the function netsnmp_udp_fmtaddr in the library snmplib/snmpUDPDomain.c of the component Access Restriction. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2008-6123. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in net-snmp Net Snmp up to 5.1 (Network Management Software) and classified as critical. This vulnerability affects the function netsnmp_udp_fmtaddr in the library snmplib/snmpUDPDomain.c of the component Access Restriction. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality. CVE summarizes:

The netsnmp_udp_fmtaddr function (snmplib/snmpUDPDomain.c) in net-snmp 5.0.9 through 5.4.2.1, when using TCP wrappers for client authorization, does not properly parse hosts.allow rules, which allows remote attackers to bypass intended access restrictions and execute SNMP queries, related to "source/destination IP address confusion."

The bug was discovered 01/11/2009. The weakness was presented 02/12/2009 as Bug 485211 as confirmed bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability was named CVE-2008-6123 since 02/12/2009. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 32 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 67806 (Oracle Linux 3 : net-snmp (ELSA-2009-0295)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165632 (SUSE Enterprise Linux Security Update (SUSE-SR:2009:012)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (49478), Tenable (67806), SecurityFocus (BID 33755†), OSVDB (51895†) and Secunia (SA34499†). See VDB-46941, VDB-46940, VDB-46932 and VDB-47986 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 67806
Nessus Name: Oracle Linux 3 : net-snmp (ELSA-2009-0295)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 63409
OpenVAS Name: Fedora Core 10 FEDORA-2009-1769 (net-snmp)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

01/11/2009 🔍
01/11/2009 +0 days 🔍
02/12/2009 +32 days 🔍
02/12/2009 +0 days 🔍
02/12/2009 +0 days 🔍
02/12/2009 +0 days 🔍
03/26/2009 +42 days 🔍
03/26/2009 +0 days 🔍
03/27/2009 +1 days 🔍
03/30/2009 +3 days 🔍
07/12/2013 +1565 days 🔍
03/17/2015 +613 days 🔍
08/31/2019 +1628 days 🔍

Sourcesinfo

Advisory: Bug 485211
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-6123 (🔍)
GCVE (CVE): GCVE-0-2008-6123
GCVE (VulDB): GCVE-100-46498

OVAL: 🔍

X-Force: 49478
SecurityFocus: 33755 - Net-SNMP 'snmpUDPDomain.c' Remote Information Disclosure Vulnerability
Secunia: 34499 - Red Hat update for net-snmp, Less Critical
OSVDB: 51895 - CVE-2008-6123 - Net-SNMP - Security Bypass Issue
SecurityTracker: 1021921
Vulnerability Center: 21422 - Net-SNMP 5.0.9 - 5.4.2.1 TCP Wrappers Remote SNMP Queries Execution Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 08/31/2019 16:25
Changes: 03/17/2015 16:11 (90), 08/31/2019 16:25 (5)
Complete: 🔍
Cache ID: 216:40D:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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