jmcnamara spreadsheet CVE-2023-7101 vulnerability in Jmcnamara and Other Products
Published on December 24, 2023

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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.

NVD

Known Exploited Vulnerability

This Spreadsheet::ParseExcel Remote Code Execution Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Spreadsheet::ParseExcel contains a remote code execution 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 within the Excel parsing logic.

The following remediation steps are recommended / required by January 23, 2024: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Vulnerability Analysis

CVE-2023-7101 can be exploited with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 1.8 out of four. The potential impact of an exploit of this vulnerability is considered to be very high.

What is a Code Injection Vulnerability?

The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

CVE-2023-7101 has been classified to as a Code Injection vulnerability or weakness.


Products Associated with CVE-2023-7101

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What versions are vulnerable to CVE-2023-7101?