Intelligence online17 sources monitored8 actively exploited 7d26 published 24hChecked recently
Vulnerability record

CVE-2023-7101

Spreadsheet::ParseExcel Remote Code Execution Vulnerability

HighExploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Spreadsheet::ParseExcel, fix it now.

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

US federal civilian agencies must remediate by Jan 23, 2024.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

Description

Spreadsheet::ParseExcel version 0.65 is a Perl module used for parsing Excel files. Spreadsheet::ParseExcel is vulnerable to an arbitrary code execution (ACE) vulnerability due to passing unvalidated input from a file into a string-type “eval”. Specifically, the issue stems from the evaluation of Number format strings (not to be confused with printf-style format strings) within the Excel parsing logic.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

ProductVendorSource
Spreadsheet::ParseExcelSpreadsheet::ParseExcelKEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog. Version details have not been published yet.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2023-7101 scored CVSS 7.8: Spreadsheet::ParseExcel Spreadsheet::ParseExcel, Spreadsheet::ParseExcel Remote Code Execution Vulnerability

    CISA lists this as exploited in the wild. Unpatched Spreadsheet::ParseExcel systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2023-7101: Spreadsheet::ParseExcel Spreadsheet::ParseExcel, Spreadsheet::ParseExcel Remote Code Execution Vulnerability

    An official fix is now available for Spreadsheet::ParseExcel Spreadsheet::ParseExcel. This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

  • metacpan.org https://metacpan.org/dist/Spreadsheet-ParseExcel
  • barracuda.com https://www.barracuda.com/company/legal/esg-vulnerability
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2023-7101
  • openwall.com http://www.openwall.com/lists/oss-security/2023/12/29/4
  • github.com https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsh…
  • github.com https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0019.md
  • https https://https://github.com/haile01/perl_spreadsheet_excel_rce_poc
  • https https://https://github.com/jmcnamara/spreadsheet-parseexcel/commit/bd3159277e745468e2c553417b35d5d7dc7405bc
  • https https://https://metacpan.org/dist/Spreadsheet-ParseExcel
  • https https://https://www.cve.org/CVERecord?id=CVE-2023-7101
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2023/12/msg00025.html
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFEHKULQRVXHIV7…
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M2FIWDHRYTAAQLG…
  • security.metacpan.org https://security.metacpan.org/2024/02/10/vulnerable-spreadsheet-parsing-modules.html
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-7101