FKIE_CVE-2023-2868
Vulnerability from fkie_nvd - Published: 2023-05-24 19:15 - Updated: 2026-06-17 05:53
Severity
9.4 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/
Summary
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.
References
| URL | Tags | ||
|---|---|---|---|
| cve-coordination@google.com | https://status.barracuda.com/incidents/34kx82j5n4q9 | Vendor Advisory | |
| cve-coordination@google.com | https://www.barracuda.com/company/legal/esg-vulnerability | Mitigation, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://status.barracuda.com/incidents/34kx82j5n4q9 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.barracuda.com/company/legal/esg-vulnerability | Mitigation, Vendor Advisory | |
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-2868 | US Government Resource |
Impacted products
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Barracuda Email Security Gateway",
"vendor": "Barracuda",
"versions": [
{
"lessThan": "9.2.0.006",
"status": "affected",
"version": "5.1.3.001",
"versionType": "custom"
}
]
}
],
"source": "cve-coordination@google.com"
}
],
"cisaActionDue": "2023-06-16",
"cisaExploitAdd": "2023-05-26",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Barracuda Networks ESG Appliance Improper Input Validation Vulnerability",
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:barracuda:email_security_gateway_300_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F270DBDA-EE31-4AF0-8743-D742467485CF",
"versionEndIncluding": "9.2.0.006",
"versionStartIncluding": "5.1.3.001",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:barracuda:email_security_gateway_300:-:*:*:*:*:*:*:*",
"matchCriteriaId": "824DAE15-3628-4346-947E-C33FA46AADE6",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:barracuda:email_security_gateway_400_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4A9B9E0B-F8D4-4626-AD39-BD525D638693",
"versionEndIncluding": "9.2.0.006",
"versionStartIncluding": "5.1.3.001",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:barracuda:email_security_gateway_400:-:*:*:*:*:*:*:*",
"matchCriteriaId": "ACD3DD62-D690-47F9-8416-61AD78B33699",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:barracuda:email_security_gateway_600_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "83D228EA-35C8-4B6E-9D22-CF0F7C20362B",
"versionEndIncluding": "9.2.0.006",
"versionStartIncluding": "5.1.3.001",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:barracuda:email_security_gateway_600:-:*:*:*:*:*:*:*",
"matchCriteriaId": "6C507D86-2E68-44A4-A31C-EEF9A6BBEE54",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:barracuda:email_security_gateway_800_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8ADAC6B0-DE92-41F6-B8B1-1C830BB70C24",
"versionEndIncluding": "9.2.0.006",
"versionStartIncluding": "5.1.3.001",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:barracuda:email_security_gateway_800:-:*:*:*:*:*:*:*",
"matchCriteriaId": "74D999D5-6CE5-49F7-A0C5-0B44704FEE45",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:barracuda:email_security_gateway_900_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C5A27A43-E632-4C8A-A9F8-49C6E091E7ED",
"versionEndIncluding": "9.2.0.006",
"versionStartIncluding": "5.1.3.001",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:barracuda:email_security_gateway_900:-:*:*:*:*:*:*:*",
"matchCriteriaId": "FFA6EA4B-B0FF-437B-A48E-F11D0CD5EB2B",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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).\u00a0The 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\u0027s qx operator with the privileges of the Email Security Gateway product.\u00a0This issue was fixed as part of BNSF-36456 patch. This patch was automatically applied to all customer appliances."
}
],
"id": "CVE-2023-2868",
"lastModified": "2026-06-17T05:53:39.770",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 9.4,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.5,
"source": "cve-coordination@google.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-2868",
"options": [
{
"exploitation": "active"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-01-16T15:36:08.898946Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-05-24T19:15:09.363",
"references": [
{
"source": "cve-coordination@google.com",
"tags": [
"Vendor Advisory"
],
"url": "https://status.barracuda.com/incidents/34kx82j5n4q9"
},
{
"source": "cve-coordination@google.com",
"tags": [
"Mitigation",
"Vendor Advisory"
],
"url": "https://www.barracuda.com/company/legal/esg-vulnerability"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://status.barracuda.com/incidents/34kx82j5n4q9"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mitigation",
"Vendor Advisory"
],
"url": "https://www.barracuda.com/company/legal/esg-vulnerability"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"US Government Resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-2868"
}
],
"sourceIdentifier": "cve-coordination@google.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "cve-coordination@google.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-77"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.