High severity · published Dec 24, 2023
CVE-2023-7101
Arbitrary Code Execution (ACE) Vulnerability
In wildKEV
7.8
CVSS
19%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)19.0% · higher than 97% of CVEs
Exploited in the wildYes
CISA KEVListed Jan 2, 2024
Federal remediation dueJan 23, 2024
Ransomware campaign useNot known
Affected products
Which versions
SP
Spreadsheet::ParseExcel · Douglas Wilson
0.65 · source: vendor, NVD, KEV
DL
Debian Linux · Debian
10.0 · source: NVD, CISA
FE
Fedora · Fedoraproject
38; 39 · source: NVD, CISA
SP
Spreadsheet\ · Jmcnamara
0.41 through 0.65 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-7101
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-7101
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
github.com
https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0019.md
https
https://https://www.cve.org/CVERecord?id=CVE-2023-7101
https
https://https://metacpan.org/dist/Spreadsheet-ParseExcel
https
https://https://github.com/haile01/perl_spreadsheet_excel_rce_poc
github.com
https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsheet/ParseExcel/Utility.pm#L171
www.openwall.com
http://www.openwall.com/lists/oss-security/2023/12/29/4