CVE-2023-2868
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2023-05-26 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2023-06-16 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 86.8% in the next 30 days (EPSS).
- Severity: 9.4 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
- It meets the bar for Drop everything: critical, and exploited or very likely to be.
Details
- Published
- Last modified
- Added to CISA KEV
- 2023-05-26
- Exploit probability
- 86.8% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Analyzed
Affected
- Barracuda Email Security Gateway 300 Firmware ≤ 9.2.0.006
- Barracuda Email Security Gateway 400 Firmware ≤ 9.2.0.006
- Barracuda Email Security Gateway 600 Firmware ≤ 9.2.0.006
- Barracuda Email Security Gateway 800 Firmware ≤ 9.2.0.006
- Barracuda Email Security Gateway 900 Firmware ≤ 9.2.0.006
Attack profile CVSS 3.1 · 9.4
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-2868.md and follow it. Check whether this project is affected by CVE-2023-2868. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://status.barracuda.com/incidents/34kx82j5n4q9
- https://www.barracuda.com/company/legal/esg-vulnerability
- https://status.barracuda.com/incidents/34kx82j5n4q9
- https://www.barracuda.com/company/legal/esg-vulnerability
References
- https://status.barracuda.com/incidents/34kx82j5n4q9
- https://www.barracuda.com/company/legal/esg-vulnerability
- https://status.barracuda.com/incidents/34kx82j5n4q9
- https://www.barracuda.com/company/legal/esg-vulnerability
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-2868