Cisco IOS 12.4/15.0/15.1/15.2 denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IOS 12.4/15.0/15.1/15.2. It has been classified as problematic. This impacts an unknown function. The manipulation leads to denial of service. This vulnerability is documented as CVE-2012-3923. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cisco IOS 12.4/15.0/15.1/15.2 (Router Operating System). This issue affects an unknown code block. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

The SSLVPN implementation in Cisco IOS 12.4, 15.0, 15.1, and 15.2, when DTLS is not enabled, does not properly handle certain outbound ACL configurations, which allows remote authenticated users to cause a denial of service (device crash) via a session involving a PPP over ATM (PPPoA) interface, aka Bug ID CSCte41827.

The weakness was released 09/16/2012 with Cisco (Website). It is possible to read the advisory at xforce.iss.net. The identification of this vulnerability is CVE-2012-3923 since 07/10/2012. 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. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/19/2017). The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (78670), SecurityFocus (BID 55604†) and Vulnerability Center (SBV-36171†). Entry connected to this vulnerability is available at VDB-62292. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/10/2012 🔍
09/16/2012 +68 days 🔍
09/16/2012 +0 days 🔍
09/19/2012 +3 days 🔍
09/19/2012 +0 days 🔍
09/20/2012 +1 days 🔍
03/24/2015 +915 days 🔍
04/19/2017 +757 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: xforce.iss.net
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-3923 (🔍)
GCVE (CVE): GCVE-0-2012-3923
GCVE (VulDB): GCVE-100-62291
X-Force: 78670
SecurityFocus: 55604 - Cisco IOS SSLVPN Multiple Denial of Service Vulnerabilities
Vulnerability Center: 36171 - Cisco IOS SSLVPN Improper ACL Configurations Handling Allows Remote DoS via PPPoA - CVE-2012-3923, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 04/19/2017 10:31
Changes: 03/24/2015 12:22 (47), 04/19/2017 10:31 (13)
Complete: 🔍
Cache ID: 216::103

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

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