VDB-134349 · CVE-2019-1705 · BID 108151

Cisco ASA VPN Session Manager Request denial of service

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.
5.5	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in Cisco ASA. It has been classified as problematic. The affected element is an unknown function of the component VPN Session Manager. Performing a manipulation as part of Request results in denial of service. This vulnerability is cataloged as CVE-2019-1705. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Cisco ASA (Firewall Software) (unknown version). It has been classified as problematic. This affects an unknown code block of the component VPN Session Manager. The manipulation as part of a Request leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

A vulnerability in the remote access VPN session manager of Cisco Adaptive Security Appliance (ASA) Software could allow a unauthenticated, remote attacker to cause a denial of service (DoS) condition on the remote access VPN services. The vulnerability is due to an issue with the remote access VPN session manager. An attacker could exploit this vulnerability by requesting an excessive number of remote access VPN sessions. An exploit could allow the attacker to cause a DoS condition.

The bug was discovered 05/01/2019. The weakness was shared 05/03/2019 as cisco-sa-20190501-asa-vpn-dos as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2019-1705 since 12/06/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/12/2023). MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316445 (Cisco Adaptive Security Appliance Software VPN Denial of Service Vulnerability(cisco-sa-20190501-asa-vpn-dos)).

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

The entry VDB-134353 is related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Firewall Software

Vendor

Cisco

Name

License

commercial

Website

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

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 5.9
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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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: 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: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2018 🔍
05/01/2019 +146 days 🔍
05/03/2019 +2 days 🔍
05/03/2019 +0 days 🔍
09/12/2023 +1593 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190501-asa-vpn-dos
Status: Confirmed

CVE: CVE-2019-1705 (🔍)
GCVE (CVE): GCVE-0-2019-1705
GCVE (VulDB): GCVE-100-134349
SecurityFocus: 108151

See also: 🔍

Entryinfo

Created: 05/03/2019 22:10
Updated: 09/12/2023 09:30
Changes: 05/03/2019 22:10 (61), 06/06/2020 16:09 (1), 09/12/2023 09:25 (3), 09/12/2023 09:30 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.