Cisco IOS 12.2/15.0/15.1/15.2/15.3 NAT input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IOS 12.2/15.0/15.1/15.2/15.3. It has been classified as problematic. This affects an unknown function of the component NAT Handler. Performing a manipulation results in input validation. This vulnerability is identified as CVE-2013-5480. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco IOS 12.2/15.0/15.1/15.2/15.3 (Router Operating System). It has been classified as problematic. This affects an unknown code block of the component NAT Handler. The manipulation with an unknown input 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 DNS-over-TCP implementation in Cisco IOS 12.2 and 15.0 through 15.3, when NAT is used, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 DNS TCP stream, aka Bug ID CSCuf28733.

The weakness was released 09/25/2013 with Cisco as cisco-sa-20130925-nat as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The public release was coordinated with Cisco. This vulnerability is uniquely identified as CVE-2013-5480 since 08/22/2013. The exploitability is told to be difficult. 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 vulnerability scanner Nessus provides a plugin with the ID 70320 (Cisco IOS Software Network Address Translation Vulnerabilities (cisco-sa-20130925-nat)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43323 (Cisco IOS Software Network Address Translation Vulnerabilities (cisco-sa-20130925-nat)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (70320), SecurityFocus (BID 62637†), OSVDB (97739†) and Vulnerability Center (SBV-41619†). Entries connected to this vulnerability are available at VDB-10490 and VDB-10492. 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: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp 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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 70320
Nessus Name: Cisco IOS Software Network Address Translation Vulnerabilities (cisco-sa-20130925-nat)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

08/22/2013 🔍
09/25/2013 +34 days 🔍
09/25/2013 +0 days 🔍
09/25/2013 +0 days 🔍
09/26/2013 +1 days 🔍
09/27/2013 +1 days 🔍
09/27/2013 +0 days 🔍
09/29/2013 +2 days 🔍
05/25/2021 +2795 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20130925-nat
Organization: Cisco
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-5480 (🔍)
GCVE (CVE): GCVE-0-2013-5480
GCVE (VulDB): GCVE-100-10491

IAVM: 🔍

SecurityFocus: 62637 - Cisco IOS CVE-2013-5480 Remote Denial of Service Vulnerability
OSVDB: 97739
Vulnerability Center: 41619 - [cisco-sa-20130925-nat] Cisco IOS Using NAT Remote DOS Via a Crafted TCP Stream - CVE-2013-5480, High

See also: 🔍

Entryinfo

Created: 09/26/2013 19:24
Updated: 05/25/2021 23:46
Changes: 09/26/2013 19:24 (73), 05/11/2017 13:33 (3), 05/25/2021 23:46 (3)
Complete: 🔍
Committer:
Cache ID: 216:369:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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