{"id":"CVE-2023-7102","published":"2023-12-24T21:47:20Z","modified":"2024-08-02T08:50:08Z","title":"Remote Code Execution (RCE) Vulnerability","vendor":"Barracuda Networks Inc.","product":"Barracuda ESG Appliance","tier":"core","eol":null,"affectedVersions":[{"vendor":"Barracuda Networks Inc.","product":"Barracuda ESG Appliance","versions":[">= 5.1.3.001, <= 9.2.1.001"]}],"description":{"text":"Use of a Third Party library produced a vulnerability in Barracuda Networks Inc. Barracuda ESG Appliance which allowed Parameter Injection.This issue affected Barracuda ESG Appliance, from 5.1.3.001 through 9.2.1.001, until Barracuda removed the vulnerable logic.\n\n","provenance":"source","from":"CVE.org"},"summary":{"text":"The flaw is a remote code execution vulnerability in the Barracuda ESG Appliance from Barracuda Networks Inc., caused by a third-party library that enables parameter injection. An attacker could exploit it to run code on the appliance.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:13:20Z"},"cvss":null,"epss":{"score":0.44575,"percentile":0.98764,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2023-12-24","exploitedFirstSeen":"2023-12-24","ransomware":false,"evidence":[{"url":"https://www.barracuda.com/company/legal/esg-vulnerability","date":"2023-12-24"},{"url":"https://www.cyber.gov.au/about-us/view-all-content/alerts-and-advisories/barracuda-email-security-gateway-esg-malicious-activity-additional-indicators-compromise-released","date":"2023-12-25"},{"url":"https://storage.googleapis.com/gweb-uniblog-publish-prod/documents/Year_in_Review_of_ZeroDays.pdf","date":"2024-03-27"},{"url":"https://www.rapid7.com/globalassets/_pdfs/research/rapid7_2024_attack_intelligence_report.pdf","date":"2024-05-21"},{"url":"https://view.bitsight.com/viewer/275c18689811d887dfa0368866323ed5#1","date":"2026-06-22"}],"evidenceTotal":5,"provenance":"source"},"exploited":true,"otx":{"pulseCount":3,"pulses":[{"name":"Linux Backdoors Impersonate Email Security Tools to Evade Detection in Korea and Taiwan","url":"https://otx.alienvault.com/pulse/6ac56057918347181355728d","created":"2026-10-06"},{"name":"2025 Cloud Threat Hunting and Defense Landscape","url":"https://otx.alienvault.com/pulse/699bd880098e16c33d767d38","created":"2026-02-23"},{"name":"2025 Cloud Threat Hunting and Defense Landscape","url":"https://otx.alienvault.com/pulse/699733d20abc04f566f5d380","created":"2026-02-19"}],"provenance":"machine"},"cwes":[{"id":"CWE-1104","name":"Use of Unmaintained Third Party Components"}],"references":[{"url":"https://www.barracuda.com/company/legal/esg-vulnerability","tags":[]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-7101","tags":[]},{"url":"https://metacpan.org/dist/Spreadsheet-ParseExcel","tags":[]},{"url":"https://github.com/haile01/perl_spreadsheet_excel_rce_poc","tags":[]},{"url":"https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsheet/ParseExcel/Utility.pm#L171","tags":[]},{"url":"https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0019.md","tags":[]}],"techniques":[],"reports":[{"id":"SRC-bf1b3fd29c4a38dbdb8c","title":"Picus-RedReport-2024","publisher":"picussecurity.com","url":"https://www.picussecurity.com/hubfs/Red%20Report%202024/Picus-RedReport-2024.pdf","date":null,"mentions":[{"quote":"devices to exploit the CVE-2023-7102 vulnerability [108].","start":274484,"end":274541}]}],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2023-59286","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-59286","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":{"metasploit":[{"name":"Barracuda ESG Spreadsheet::ParseExcel Arbitrary Code Execution","module":"exploit/linux/smtp/barracuda_esg_spreadsheet_rce","type":"exploit","disclosureDate":"2023-12-24","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/smtp/barracuda_esg_spreadsheet_rce.rb"}],"first":{"date":"2023-12-24","source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/smtp/barracuda_esg_spreadsheet_rce.rb"},"provenance":"source"},"exploitRefs":["https://github.com/haile01/perl_spreadsheet_excel_rce_poc"],"flow":[],"timeline":[{"date":"2023-12-24","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2023-7102","provenance":"source"},{"date":"2023-12-24","kind":"exploit-public","label":"First public exploit: Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/smtp/barracuda_esg_spreadsheet_rce.rb","provenance":"source"},{"date":"2023-12-24","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.barracuda.com/company/legal/esg-vulnerability","provenance":"source"}],"speed":{"daysToPublicExploit":0,"firstExploitFrom":"Metasploit","daysToKev":null},"priority":{"score":65.0,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1041 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.75,"detail":"percentile 0.9876"},{"name":"Named in threat reports","points":3.87,"detail":"1 report"},{"name":"Public exploit code","points":5.0,"detail":"1 NVD exploit link; 1 Metasploit module"},{"name":"Mentioned in OTX pulses","points":1.37,"detail":"3 pulses"},{"name":"CVSS severity","points":0.0,"detail":"no CVSS"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}