Cisco Email Security Appliance Antispam Protection Mechanism input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability was found in Cisco Email Security Appliance (Anti-Malware Software) (the affected version is unknown). It has been classified as critical. Affected is an unknown code of the component Antispam Protection Mechanism. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. The vulnerability is due to insufficient input validation of URLs. An attacker could exploit this vulnerability by crafting the URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for the affected device, which could allow malicious URLs to pass through the device.

The weakness was released 11/26/2019 as cisco-sa-20191120-esa-url-bypa as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability is traded as CVE-2019-15988 since 09/06/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 02/28/2024).

Upgrading eliminates this vulnerability.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.8
NVD Vector: 🔍

CNA Base Score: 5.8
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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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: 🔍

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/06/2019 🔍
11/26/2019 +81 days 🔍
11/26/2019 +0 days 🔍
02/28/2024 +1555 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20191120-esa-url-bypa
Status: Confirmed

CVE: CVE-2019-15988 (🔍)

Entryinfo

Created: 11/26/2019 09:47
Updated: 02/28/2024 08:37
Changes: 11/26/2019 09:47 (39), 11/26/2019 09:52 (12), 02/28/2024 08:37 (20)
Complete: 🔍

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