VDB-142840 · CVE-2019-12678 · GCVE-0-2019-12678

Cisco ASA/Firepower Threat Defense Session Initiation Protocol SIP Message integer underflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.1	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco ASA and Firepower Threat Defense. Impacted is an unknown function of the component Session Initiation Protocol. Executing a manipulation as part of SIP Message can lead to integer underflow. This vulnerability is registered as CVE-2019-12678. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Cisco ASA and Firepower Threat Defense (Firewall Software) (unknown version). This vulnerability affects an unknown code block of the component Session Initiation Protocol. The manipulation as part of a SIP Message leads to a integer underflow vulnerability. The CWE definition for the vulnerability is CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. As an impact it is known to affect availability. CVE summarizes:

A vulnerability in the Session Initiation Protocol (SIP) inspection module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper parsing of SIP messages. An attacker could exploit this vulnerability by sending a malicious SIP packet through an affected device. A successful exploit could allow the attacker to trigger an integer underflow, causing the software to try to read unmapped memory and resulting in a crash.

The weakness was published 10/02/2019 as cisco-sa-20191002-asa-ftd-sip- as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2019-12678 since 06/04/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/29/2023).

Upgrading eliminates this vulnerability.

Similar entry is available at VDB-142838. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Firewall Software

Vendor

Cisco

Name

License

commercial

Website

Vendor: https://www.cisco.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.6
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/04/2019 🔍
10/02/2019 +120 days 🔍
10/03/2019 +1 days 🔍
12/29/2023 +1548 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20191002-asa-ftd-sip-
Status: Confirmed

CVE: CVE-2019-12678 (🔍)
GCVE (CVE): GCVE-0-2019-12678
GCVE (VulDB): GCVE-100-142840
See also: 🔍

Entryinfo

Created: 10/03/2019 09:55
Updated: 12/29/2023 16:25
Changes: 10/03/2019 09:55 (41), 09/19/2020 18:56 (18), 12/29/2023 16:25 (14)
Complete: 🔍
Cache ID: 216::103

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