CVE-2021-47155 Security feature bypass in n/a
Attackers can bypass IP-based access controls by using IP addresses with extraneous zero characters in the Net::IPV4Addr Perl module.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-47155?
CVE-2021-47155 is a critical vulnerability in n/a, published on 18 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-284
Which versions are affected by CVE-2021-47155?
How do I fix CVE-2021-47155?
No fix has been published for CVE-2021-47155 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-47155 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47155 exists.
Sources
Also known as DEBIAN-CVE-2021-47155, GHSA-v6xp-w49h-9cmc, UBUNTU-CVE-2021-47155.