Home/CVE/CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS.
CVE

CVE-2023-31484

CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS.

CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS.

HIGH · CVSS 8.1 EPSS 0.01523
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
CWE-295Improper Certificate Validation
▤

Affected Products & Versions

2
cpanpm project cpanpm< 2.35
perl< 5.38.0
⚠

Public Exploits & PoCs

1
pocgithub.com · pull/175github.com
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighPotential Perl Reverse Shell Execution
productmediumPerl Inline Command Execution
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Apr 2023 · 12:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

12
msrcCVE-2023-31484
apple-security121839
suse-csafSUSE-SU-2024:1630-1
suse-csafSUSE-SU-2023:2881-1
suse-csafSUSE-SU-2023:2882-1
🔗

References & Sources

11
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2023/04/29/1Mailing ListPatch
http://www.openwall.com/lists/oss-security/2023/05/03/3Mailing ListPatch
http://www.openwall.com/lists/oss-security/2023/05/03/5Mailing List
http://www.openwall.com/lists/oss-security/2023/05/07/2Mailing List
https://blog.hackeriet.no/perl-http-tiny-insecure-tls-default-affects-cpan-modules/MitigationPatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BM6UW55CNFUTNGD5ZRKGUKKKFDJGMFHL/
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