// For flags

CVE-2023-2868

Barracuda Networks ESG Appliance Improper Input Validation Vulnerability

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

Yes
*KEV

Decision

-
*SSVC
Descriptions

A remote command injection vulnerability exists in the Barracuda Email Security Gateway (appliance form factor only) product effecting versions 5.1.3.001-9.2.0.006. The vulnerability arises out of a failure to comprehensively sanitize the processing of .tar file (tape archives). The vulnerability stems from incomplete input validation of a user-supplied .tar file as it pertains to the names of the files contained within the archive. As a consequence, a remote attacker can specifically format these file names in a particular manner that will result in remotely executing a system command through Perl's qx operator with the privileges of the Email Security Gateway product. This issue was fixed as part of BNSF-36456 patch. This patch was automatically applied to all customer appliances.

Barracuda Email Security Gateway (ESG) appliance contains an improper input validation vulnerability of a user-supplied .tar file, leading to remote command injection.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-05-24 CVE Reserved
  • 2023-05-24 CVE Published
  • 2023-05-26 Exploited in Wild
  • 2023-06-16 KEV Due Date
  • 2023-08-25 First Exploit
  • 2024-08-02 CVE Updated
  • 2024-11-03 EPSS Updated
CWE
  • CWE-20: Improper Input Validation
  • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
CAPEC
  • CAPEC-253: Remote Code Inclusion
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Barracuda
Search vendor "Barracuda"
Email Security Gateway 300 Firmware
Search vendor "Barracuda" for product "Email Security Gateway 300 Firmware"
>= 5.1.3.001 <= 9.2.0.006
Search vendor "Barracuda" for product "Email Security Gateway 300 Firmware" and version " >= 5.1.3.001 <= 9.2.0.006"
-
Affected
in Barracuda
Search vendor "Barracuda"
Email Security Gateway 300
Search vendor "Barracuda" for product "Email Security Gateway 300"
--
Safe
Barracuda
Search vendor "Barracuda"
Email Security Gateway 400 Firmware
Search vendor "Barracuda" for product "Email Security Gateway 400 Firmware"
>= 5.1.3.001 <= 9.2.0.006
Search vendor "Barracuda" for product "Email Security Gateway 400 Firmware" and version " >= 5.1.3.001 <= 9.2.0.006"
-
Affected
in Barracuda
Search vendor "Barracuda"
Email Security Gateway 400
Search vendor "Barracuda" for product "Email Security Gateway 400"
--
Safe
Barracuda
Search vendor "Barracuda"
Email Security Gateway 600 Firmware
Search vendor "Barracuda" for product "Email Security Gateway 600 Firmware"
>= 5.1.3.001 <= 9.2.0.006
Search vendor "Barracuda" for product "Email Security Gateway 600 Firmware" and version " >= 5.1.3.001 <= 9.2.0.006"
-
Affected
in Barracuda
Search vendor "Barracuda"
Email Security Gateway 600
Search vendor "Barracuda" for product "Email Security Gateway 600"
--
Safe
Barracuda
Search vendor "Barracuda"
Email Security Gateway 800 Firmware
Search vendor "Barracuda" for product "Email Security Gateway 800 Firmware"
>= 5.1.3.001 <= 9.2.0.006
Search vendor "Barracuda" for product "Email Security Gateway 800 Firmware" and version " >= 5.1.3.001 <= 9.2.0.006"
-
Affected
in Barracuda
Search vendor "Barracuda"
Email Security Gateway 800
Search vendor "Barracuda" for product "Email Security Gateway 800"
--
Safe
Barracuda
Search vendor "Barracuda"
Email Security Gateway 900 Firmware
Search vendor "Barracuda" for product "Email Security Gateway 900 Firmware"
>= 5.1.3.001 <= 9.2.0.006
Search vendor "Barracuda" for product "Email Security Gateway 900 Firmware" and version " >= 5.1.3.001 <= 9.2.0.006"
-
Affected
in Barracuda
Search vendor "Barracuda"
Email Security Gateway 900
Search vendor "Barracuda" for product "Email Security Gateway 900"
--
Safe