Cisco IOS XR 5.2.0.BASE/5.2.1.BASE SNMPv2 Packet input validation

CVSS Meta Temp Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IOS XR 5.2.0.BASE/5.2.1.BASE. It has been classified as problematic. The affected element is an unknown function of the component SNMPv2 Packet Handler. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2014-3377. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco IOS XR 5.2.0.BASE/5.2.1.BASE (Router Operating System) and classified as problematic. This issue affects an unknown code block of the component SNMPv2 Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

snmpd in Cisco IOS XR 5.1 and earlier allows remote authenticated users to cause a denial of service (process reload) via a malformed SNMPv2 packet, aka Bug ID CSCun67791.

The weakness was disclosed 09/18/2014 with Cisco as CSCun67791 as confirmed security notice (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2014-3377 since 05/07/2014. The exploitation is known to be easy. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 5.1.3.8i.BASE, 5.2.2.7i.BASE or 5.3.0.1i.BASE eliminates this vulnerability. The upgrade is hosted for download at software.cisco.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (96066), SecurityFocus (BID 69959†), Secunia (SA59606†), SecurityTracker (ID 1030878†) and Vulnerability Center (SBV-46220†). tools.cisco.com is providing further details. The entries VDB-67666, VDB-67668 and VDB-67669 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.3
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: IOS XR 5.1.3.8i.BASE/5.2.2.7i.BASE/5.3.0.1i.BASE

Timelineinfo

05/07/2014 🔍
09/18/2014 +134 days 🔍
09/18/2014 +0 days 🔍
09/18/2014 +0 days 🔍
09/19/2014 +1 days 🔍
09/19/2014 +0 days 🔍
09/20/2014 +1 days 🔍
09/20/2014 +0 days 🔍
09/21/2014 +1 days 🔍
09/23/2014 +2 days 🔍
06/06/2017 +987 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCun67791
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3377 (🔍)
GCVE (CVE): GCVE-0-2014-3377
GCVE (VulDB): GCVE-100-67667
X-Force: 96066 - Cisco IOS XR SNMPv2 denial of service, Medium Risk
SecurityFocus: 69959 - Cisco IOS XR Software CVE-2014-3377 SNMPv2 Packet Parsing Denial of Service Vulnerability
Secunia: 59606 - Cisco IOS XR SNMPv2 Packet Handling Denial of Service Vulnerability, Less Critical
SecurityTracker: 1030878 - Cisco IOS XR Packet Processing Flaws Let Remote and Remote Authenticated Users Deny Service
Vulnerability Center: 46220 - Cisco IOS XR <=5.1 Remote DoS via Malformed SNMPv2 Packets, Medium

scip Labs: https://www.scip.ch/en/?labs.20150108
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/23/2014 14:45
Updated: 06/06/2017 08:43
Changes: 09/23/2014 14:45 (78), 06/06/2017 08:43 (3)
Complete: 🔍
Cache ID: 216:016:103

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