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CVE-2021-29922

Published: Aug 7, 2021

Modified: Aug 3, 2024

PUBLISHED

Description

library/std/src/net/parser.rs in Rust before 1.53.0 does not properly consider extraneous zero characters at the beginning of an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses, because of unexpected octal interpretation.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://doc.rust-lang.org/beta/std/net/struct.Ipv4Addr.html

https://github.com/rust-lang/rust/pull/83652

https://github.com/rust-lang/rust/issues/83648

https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-015.md

https://defcon.org/html/defcon-29/dc-29-speakers.html#kaoudis

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