CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.7 | $0-$5k | 0.00 |
A vulnerability was found in Cisco IOS 15.1/15.2 (Router Operating System). It has been rated as problematic. This issue affects an unknown function of the component ZFW. 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:
The Zone-Based Firewall (ZFW) feature in Cisco IOS 15.1 through 15.2, when content filtering or HTTP ALG inspection is enabled, allows remote attackers to cause a denial of service (device reload or hang) via crafted IPv4 HTTP traffic, aka Bug ID CSCtx56174.
The weakness was presented 09/25/2013 as cisco-sa-20130925-cce as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The public release was coordinated in cooperation with Cisco. The identification of this vulnerability is CVE-2013-5476 since 08/22/2013. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 70314 (Cisco IOS Software Zone-Based Firewall and Content Filtering Vulnerability (cisco-sa-20130925-cce)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.
Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (70314). See 10492, 10491, 10490 and 10489 for similar entries.
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: 5.9VulDB Meta Temp Score: 5.7
VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
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Exploiting
Class: Input validationCWE: CWE-20
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Nessus ID: 70314
Nessus Name: Cisco IOS Software Zone-Based Firewall and Content Filtering Vulnerability (cisco-sa-20130925-cce)
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: 🔍
Timeline
08/22/2013 🔍09/25/2013 🔍
09/25/2013 🔍
09/26/2013 🔍
09/27/2013 🔍
09/27/2013 🔍
09/29/2013 🔍
10/07/2013 🔍
05/26/2021 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-20130925-cce
Status: Confirmed
Coordinated: 🔍
CVE: CVE-2013-5476 (🔍)
IAVM: 🔍
Vulnerability Center: 41622 - [cisco-sa-20130925-cce] Cisco IOS 15.1 - 15.2 with Content Filtering or HTTP ALG Enabled Remote DoS via Crafted IPv4 HTTP - CVE-2013-5476, High
SecurityFocus: 62642
OSVDB: 97741
See also: 🔍
Entry
Created: 09/26/2013 19:26Updated: 05/26/2021 00:16
Changes: 09/26/2013 19:26 (46), 05/12/2017 08:34 (26), 05/26/2021 00:16 (3)
Complete: 🔍
Committer:
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