Cisco IOS XR 5.2.0.BASE/5.2.1.BASE SNMPv2 Packet input validation
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
3.8 | $0-$5k | 0.00 |
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 vulnerability database at X-Force (96066). tools.cisco.com is providing further details. The entries 67666, 67668 and 67669 are pretty similar.
Product
Type
Vendor
Name
Version
License
Support
- end of life (old version)
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 3.8
VulDB Base Score: 4.3
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Input validationCWE: CWE-20
ATT&CK: Unknown
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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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
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
Timeline
05/07/2014 🔍09/18/2014 🔍
09/18/2014 🔍
09/18/2014 🔍
09/19/2014 🔍
09/19/2014 🔍
09/20/2014 🔍
09/20/2014 🔍
09/21/2014 🔍
09/23/2014 🔍
06/06/2017 🔍
Sources
Vendor: cisco.comAdvisory: CSCun67791
Organization: Cisco
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2014-3377 (🔍)
X-Force: 96066 - Cisco IOS XR SNMPv2 denial of service, Medium Risk
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
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
scip Labs: https://www.scip.ch/en/?labs.20150108
Misc.: 🔍
See also: 🔍
Entry
Created: 09/23/2014 14:45Updated: 06/06/2017 08:43
Changes: 09/23/2014 14:45 (78), 06/06/2017 08:43 (3)
Complete: 🔍
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