CVE Vulnerability

CVE-2021-29922

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.

6.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.1 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/rust-lang/rust/pull/83652 Patch Third Party Advisory
https://doc.rust-lang.org/beta/std/net/struct.Ipv4Addr.html Vendor Advisory
https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-015.md Exploit Third Party Advisory
https://defcon.org/html/defcon-29/dc-29-speakers.html#kaoudis Third Party Advisory
https://github.com/rust-lang/rust/issues/83648 Exploit Issue Tracking
https://security.gentoo.org/glsa/202210-09 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*
Information

Published : 2021-08-07 05:15

Updated : 2022-11-07 04:36

NVD link : CVE-2021-29922

Mitre link : CVE-2021-29922

Products Affected
No products.
CWE
NVD-CWE-noinfo