Cisco Email Security Appliance 8.5.6-106/9.5.0-201 DNS TXT Record input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$5k-$25k0.00

A vulnerability was found in Cisco Email Security Appliance 8.5.6-106/9.5.0-201 (Anti-Malware Software) and classified as problematic. Affected by this issue is an unknown functionality of the component DNS TXT Record 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 availability. CVE summarizes:

Cisco Email Security Appliance (ESA) devices with software 8.5.6-106 and 9.5.0-201 allow remote attackers to cause a denial of service (per-domain e-mail reception outage) by placing malformed DMARC policy data in DNS TXT records for a domain, aka Bug ID CSCuv14806.

The weakness was presented 07/16/2015 with Cisco as CSCuv14806 as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability is handled as CVE-2015-4278 since 06/04/2015. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 06/03/2022).

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

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

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

CVSSv2info

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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
ATT&CK: Unknown

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/04/2015 🔍
07/15/2015 +41 days 🔍
07/15/2015 +0 days 🔍
07/16/2015 +1 days 🔍
07/16/2015 +0 days 🔍
07/17/2015 +1 days 🔍
09/21/2015 +66 days 🔍
06/03/2022 +2446 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCuv14806
Organization: Cisco
Status: Confirmed

CVE: CVE-2015-4278 (🔍)
SecurityTracker: 1032961
Vulnerability Center: 52843 - Cisco Email Security Appliance (ESA) 8.5.6, 9.5.0 Remote DoS via Malformed DMARC Policy, Medium
SecurityFocus: 75920 - Cisco Email Security Appliance CVE-2015-4278 Remote Denial of Service Vulnerability

Entryinfo

Created: 07/17/2015 11:03
Updated: 06/03/2022 01:08
Changes: 07/17/2015 11:03 (55), 01/02/2018 10:15 (4), 06/03/2022 01:08 (3)
Complete: 🔍

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