CVE Vulnerability

CVE-2019-1905

A vulnerability in the GZIP decompression engine of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper validation of GZIP-formatted files. An attacker could exploit this vulnerability by sending a malicious file inside a crafted GZIP-compressed file. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.8 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619-esa-bypass Vendor Advisory
http://www.securityfocus.com/bid/108856 Third Party Advisory VDB Entry
Configurations

Configuration 1

cpe:2.3:a:cisco:email_security_appliance:11.1.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:email_security_appliance:12.0.0:*:*:*:*:*:*:*
Information

Published : 2019-06-20 03:15

Updated : 2019-10-09 11:48

NVD link : CVE-2019-1905

Mitre link : CVE-2019-1905

Products Affected
No products.
CWE
CWE-20