Cisco ASA Secondary Flow Hash Lookup race condition

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco ASA. This vulnerability affects unknown code of the component Secondary Flow Hash Lookup. Executing a manipulation can lead to race condition. This vulnerability is registered as CVE-2012-5415. Furthermore, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco ASA (Firewall Software) (unknown version). It has been declared as critical. This vulnerability affects an unknown code block of the component Secondary Flow Hash Lookup. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect availability. CVE summarizes:

Race condition on Cisco Adaptive Security Appliances (ASA) devices allows remote attackers to cause a denial of service (CPU consumption or device reload) by establishing multiple connections, leading to improper handling of hash lookups for secondary flows, aka Bug IDs CSCue31622 and CSCuc71272.

The weakness was published 04/11/2013 with Cisco as Secondary Flows Lookup Denial of Service Vulnerability as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. The public release has been coordinated with the vendor. This vulnerability was named CVE-2012-5415 since 10/17/2012. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

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 X-Force (83593), SecurityFocus (BID 59256†), OSVDB (92488†), Secunia (SA53039†) and Vulnerability Center (SBV-39234†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

10/17/2012 🔍
04/11/2013 +176 days 🔍
04/11/2013 +0 days 🔍
04/11/2013 +0 days 🔍
04/11/2013 +0 days 🔍
04/16/2013 +5 days 🔍
04/18/2013 +2 days 🔍
04/18/2013 +0 days 🔍
04/19/2013 +1 days 🔍
04/27/2017 +1469 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: Secondary Flows Lookup Denial of Service Vulnerability
Organization: Cisco
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-5415 (🔍)
GCVE (CVE): GCVE-0-2012-5415
GCVE (VulDB): GCVE-100-8440
X-Force: 83593
SecurityFocus: 59256 - Cisco Adaptive Security Appliance CVE-2012-5415 Denial of Service Vulnerability
Secunia: 53039 - Cisco Adaptive Security Appliance Secondary Flows Lookup Denial of Service Vulnerability, Less Critical
OSVDB: 92488
Vulnerability Center: 39234 - Cisco ASA Race Condition Allows Remote DoS via Multiple Connections - CVE-2012-5415, High

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/19/2013 17:37
Updated: 04/27/2017 17:03
Changes: 04/19/2013 17:37 (67), 04/27/2017 17:03 (4)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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