Cisco IOS up to 15.3 Virtual Routing/Forwarding Subsystem input validation

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

Summaryinfo

A vulnerability classified as problematic was found in Cisco IOS 12.2/12.4/15.0/15.2/15.3. This impacts an unknown function of the component Virtual Routing/Forwarding Subsystem. Executing a manipulation can lead to input validation. This vulnerability is handled as CVE-2015-0638. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Cisco IOS 12.2/12.4/15.0/15.2/15.3 (Router Operating System). This vulnerability affects an unknown function of the component Virtual Routing/Forwarding Subsystem. 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 availability. CVE summarizes:

Cisco IOS 12.2, 12.4, 15.0, 15.2, and 15.3, when a VRF interface is configured, allows remote attackers to cause a denial of service (interface queue wedge) via crafted ICMPv4 packets, aka Bug ID CSCsi02145.

The weakness was released 03/25/2015 with Cisco as cisco-sa-20150325-wedge as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2015-0638 since 01/07/2015. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 82570 , which helps to determine the existence of the flaw in a target environment. It is . The commercial vulnerability scanner Qualys is able to test this issue with plugin 43437 (Cisco IOS Software Virtual Routing and Forwarding ICMP Queue Wedge Vulnerability (cisco-sa-20150325-wedge)).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (101805), Tenable (82570), SecurityFocus (BID 73338†), SecurityTracker (ID 1031983†) and Vulnerability Center (SBV-49211†). Entries connected to this vulnerability are available at VDB-74115, VDB-74114 and VDB-74113. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 82570
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2015 🔍
03/25/2015 +77 days 🔍
03/25/2015 +0 days 🔍
03/25/2015 +0 days 🔍
03/25/2015 +0 days 🔍
03/26/2015 +1 days 🔍
03/26/2015 +0 days 🔍
03/26/2015 +0 days 🔍
04/03/2015 +8 days 🔍
12/02/2024 +3531 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20150325-wedge
Organization: Cisco
Status: Confirmed

CVE: CVE-2015-0638 (🔍)
GCVE (CVE): GCVE-0-2015-0638
GCVE (VulDB): GCVE-100-74116
X-Force: 101805 - Cisco IOS virtual routing and forwarding subsystem denial of service
SecurityFocus: 73338 - Cisco IOS Software Virtual Routing and Forwarding Subsystem Denial of Service Vulnerability
SecurityTracker: 1031983 - Cisco IOS Virtual Routing and Forwarding Flaw Lets Remote Users Deny Service
Vulnerability Center: 49211 - [cisco-sa-20150325-wedge] Cisco IOS Re mote DoS via Crafted ICMPv4 Messages - CVE-2015-0638, High

See also: 🔍

Entryinfo

Created: 03/26/2015 08:52
Updated: 12/02/2024 09:54
Changes: 03/26/2015 08:52 (71), 06/23/2017 10:37 (3), 04/16/2022 08:35 (3), 12/02/2024 09:54 (16)
Complete: 🔍
Cache ID: 216::103

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