High severity · published Apr 29, 2023
CVE-2023-31484
CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS
8.1
CVSS
1.5%
EPSS
No
On KEV
Description
CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CP
Cpanpm · Cpanpm Project
before 2.35 · source: NVD
PE
Perl · Perl
before 5.38.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-31484
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-31484
Mailing List
http://www.openwall.com/lists/oss-security/2023/04/29/1
Mailing List
http://www.openwall.com/lists/oss-security/2023/05/03/3
Mailing List
http://www.openwall.com/lists/oss-security/2023/05/03/5
Mailing List
http://www.openwall.com/lists/oss-security/2023/05/07/2
Mitigation
https://blog.hackeriet.no/perl-http-tiny-insecure-tls-default-affects-cpan-modules/
Exploit
https://github.com/andk/cpanpm/pull/175