by Kastro
Paper/Archive/CVE-2021-47155

CVE-2021-47155

perl perl — The Net::IPV4Addr module 0.10 for Perl does not properly consider extraneous zero characters in an IP address string, which (in some situ…

EPSS 0.5%public exploitCVSS 9.1
critical.is priorityof 100
46
CVSS 9.1 (ADP)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 43.2.432 × 208.6Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

The Net::IPV4Addr module 0.10 for Perl does not properly consider extraneous zero characters in an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses.

Affected

ProductAffectedFixed inSource
n/an/a–CNA
perl0.10–CISA-ADP

Scores by source

CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refblog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/#net-ipv4addrhttpsmetacpanorgreleasenet-ipv4addrrefmetacpan.org/release/Net-IPv4Addr