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.

CVSS v3 9.1 CRITICAL
CVSS v2.0 6.4 MEDIUM

9.1^/10

CVSS v3 : CRITICAL

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

6.4^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:P

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

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

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2021-08-07 17:15

Updated : 2022-11-07 16:36

NVD link : CVE-2021-29922

Mitre link : CVE-2021-29922

CVE.ORG link : CVE-2021-29922

JSON object : View

Products Affected

rust-lang

rust

CWE

NVD-CWE-noinfo

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