Cisco IOS/IOS XE up to 15.4(2)S Locator/ID Separation Protocol LISP Control Message input validation
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.6 | $0-$5k | 0.00 |
Summary
A vulnerability identified as problematic has been detected in Cisco IOS and IOS XE up to 15.4(2)S. The affected element is an unknown function of the component Locator/ID Separation Protocol Handler. Performing a manipulation as part of LISP Control Message results in input validation. This vulnerability is cataloged as CVE-2014-3262. There is no exploit available. You should upgrade the affected component.
Details
A vulnerability classified as problematic has been found in Cisco IOS and IOS XE up to 15.4(2)S (Router Operating System). This affects some unknown functionality of the component Locator/ID Separation Protocol Handler. The manipulation as part of a LISP Control Message leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:
The Locator/ID Separation Protocol (LISP) implementation in Cisco IOS 15.3(3)S and earlier and IOS XE does not properly validate parameters in ITR control messages, which allows remote attackers to cause a denial of service (CEF outage and packet drops) via malformed messages, aka Bug ID CSCun73782.
The weakness was shared 05/14/2014 with Cisco as CSCun73782 as confirmed security notice (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is uniquely identified as CVE-2014-3262 since 05/07/2014. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:
The vulnerability is due to insufficient checking of certain parameters in LISP control messages on the Ingress Tunnel Router (ITR). An attacker could exploit this vulnerability by sending malformed LISP control messages to the ITR. An exploit could allow the attacker to cause a vulnerable device to disable Cisco Express Forwarding and eventually drop traffic passing through.
The vulnerability scanner Nessus provides a plugin with the ID 79250 (Cisco IOS XE LISP ITR DoS (CSCun73782)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.
Upgrading 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 (93156), Tenable (79250), SecurityFocus (BID 67399†), Secunia (SA58655†) and SecurityTracker (ID 1030243†). Further details are available at tools.cisco.com. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 4.6
VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Input validationCWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Unproven
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Nessus ID: 79250
Nessus Name: Cisco IOS XE LISP ITR DoS (CSCun73782)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: software.cisco.com
Timeline
05/07/2014 🔍05/14/2014 🔍
05/14/2014 🔍
05/14/2014 🔍
05/14/2014 🔍
05/14/2014 🔍
05/16/2014 🔍
05/16/2014 🔍
05/17/2014 🔍
06/01/2014 🔍
11/14/2014 🔍
06/19/2021 🔍
Sources
Vendor: cisco.comAdvisory: CSCun73782
Organization: Cisco
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2014-3262 (🔍)
GCVE (CVE): GCVE-0-2014-3262
GCVE (VulDB): GCVE-100-13239
X-Force: 93156 - Cisco IOS Software and Cisco IOS XE LISP denial of service, Medium Risk
SecurityFocus: 67399 - Cisco IOS and IOS XE Software CVE-2014-3262 Denial of Service Vulnerability
Secunia: 58655 - Cisco IOS and IOS XE LISP Control Messages Denial of Service Vulnerability, Less Critical
SecurityTracker: 1030243 - Cisco IOS and IOS XE LISP Processing Flaw Lets Remote Users Deny Service
Vulnerability Center: 44713 - Cisco IOS and IOS XE Remote DoS via LISP, Medium
scip Labs: https://www.scip.ch/en/?labs.20150108
Misc.: 🔍
Entry
Created: 05/17/2014 15:10Updated: 06/19/2021 17:43
Changes: 05/17/2014 15:10 (52), 05/29/2017 10:23 (36), 06/19/2021 17:43 (3)
Complete: 🔍
Cache ID: 216:862:103
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