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CVE-2023-7101 Format string

Significant
Remediate Within one Month

CVE Information

Original CVE data

Published:
Updated:

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.

CWE: CWE-94
CVSS v2-
CVSS v37.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0019.md
https://www.cve.org/CVERecord?id=CVE-2023-7101
https://metacpan.org/dist/Spreadsheet-ParseExcel
https://github.com/haile01/perl_spreadsheet_excel_rce_poc
https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsheet/ParseExcel/Utility.pm
http://www.openwall.com/lists/oss-security/2023/12/29/4
https://lists.debian.org/debian-lts-announce/2023/12/msg00025.html
https://github.com/jmcnamara/spreadsheet-parseexcel/commit/bd3159277e745468e2c553417b35d5d7dc7405bc
https://lists.fedoraproject.org/archives/list/[email protected]/message/IFEHKULQRVXHIV7XXK2RGD4VQN6Y4CV5/
https://lists.fedoraproject.org/archives/list/[email protected]/message/M2FIWDHRYTAAQLGM6AFOZVM7AFZ4H2ZR/
https://security.metacpan.org/2024/02/10/vulnerable-spreadsheet-parsing-modules.html
Affected Vendors

Debian - (1)

Fedoraproject - (1)

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOnengine

Format string

CVSS Scores as calculated by PRIOnengine
CVSS v27.5
AV:N/AC:L/AU:N/C:P/I:P/A:P
CVSS v38.8
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
MITRE CWE Top 25

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Exploits

No exploit code is reported to exist.

Active Exploitation

Vulnerability is referenced under CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

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Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

T1499.004 - Endpoint Denial of Service (Application or System Exploitation)
T1203 - Exploitation for Client Execution
T1059 - Command and Scripting Interpreter

Compliance Impact

How the submited vulnerability affects compliance

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Web Application Security Frameworks

Applicable if the issue likely affects a web application

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