Cisco ASA Smart Tunnel input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Cisco ASA and classified as critical. Affected by this vulnerability is an unknown functionality of the component Smart Tunnel Handler. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2019-1945. Local access is required to approach this attack. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Cisco ASA (Firewall Software) (the affected version unknown) and classified as critical. This issue affects an unknown part of the component Smart Tunnel Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple vulnerabilities in the smart tunnel functionality of Cisco Adaptive Security Appliance (ASA) could allow an authenticated, local attacker to elevate privileges to the root user or load a malicious library file while the tunnel is being established. For more information about these vulnerabilities, see the Details section of this security advisory.

The weakness was disclosed 08/07/2019 as cisco-sa-20190807-asa-multi as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2019-1945 since 12/06/2018. Attacking locally is a requirement. A simple authentication is necessary for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

The entry VDB-139666 is pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 6.7
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2018 🔍
08/07/2019 +244 days 🔍
08/08/2019 +1 days 🔍
11/21/2023 +1566 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190807-asa-multi
Status: Confirmed

CVE: CVE-2019-1945 (🔍)
GCVE (CVE): GCVE-0-2019-1945
GCVE (VulDB): GCVE-100-139667
See also: 🔍

Entryinfo

Created: 08/08/2019 06:50
Updated: 11/21/2023 13:00
Changes: 08/08/2019 06:50 (40), 07/22/2020 17:34 (4), 11/21/2023 13:00 (29)
Complete: 🔍
Cache ID: 216::103

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