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CVE-2019-1905

Cisco Email Security Appliance GZIP Content Filter Bypass Vulnerability

Published: Jun 20, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-20
5.8MEDIUM
NVD MITRE
EPSS Score
1.4%
Top 30.9%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-20

Affected Products

Cisco Systems Inc.
commercial·USaka cisco, cisco systems
Email Security Appliances
Networking Infrastructure
AsyncOS
Networking Infrastructure
email security appliance
Networking Infrastructure
Cisco Email Security Appliance (ESA)
Networking Infrastructure

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

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Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://tools.cisco.com/security/center/publicationListing.x?product=Cisco&last_published=2019+Jun&sort=-day_sir&limit=50#~Vulnerabilities
tools.cisco.com
https://nvd.nist.gov/vuln/detail/CVE-2019-1905
nvd.nist.gov
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619-esa-bypass
tools.cisco.com
and 1 more references View all →

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