certfr_avis - CERTFR-2022-AVI-156

CERTFR-2022-AVI-156

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité a été découverte dans Cisco Email Security Appliance. Elle permet à un attaquant de provoquer un déni de service à distance.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Cisco AsyncOS versions 13.0.x antérieures à 13.0.3
Cisco AsyncOS versions 13.5.x antérieures à 13.5.4.1021
Cisco AsyncOS versions 14.0.x antérieures à 14.0.2.020

L'éditeur ne propose pas de correctif pour les versions 12.5.x et antérieures. Les utilisateurs d'une version obsolète doivent préalablement mettre à jour AsyncOS pour bénéficier des correctifs de sécurité.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2022-20653 (GCVE-0-2022-20653)

Vulnerability from cvelistv5 – Published: 2022-02-17 15:00 – Updated: 2024-11-06 16:30

Title

Cisco Email Security Appliance DNS Verification Denial of Service Vulnerability

Summary

A vulnerability in the DNS-based Authentication of Named Entities (DANE) email verification component of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient error handling in DNS name resolution by the affected software. An attacker could exploit this vulnerability by sending specially formatted email messages that are processed by an affected device. A successful exploit could allow the attacker to cause the device to become unreachable from management interfaces or to process additional email messages for a period of time until the device recovers, resulting in a DoS condition. Continued attacks could cause the device to become completely unavailable, resulting in a persistent DoS condition.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-399

Assigner

cisco

References

URL

Tags

https://tools.cisco.com/security/center/content/C…

vendor-advisoryx_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Email Security Appliance (ESA)	Affected: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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