Vulnerability Name: | CVE-2021-36770 (CCN-207932) | ||||||||||||
Assigned: | 2021-08-09 | ||||||||||||
Published: | 2021-08-09 | ||||||||||||
Updated: | 2022-05-03 | ||||||||||||
Summary: | Encode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in the current working directory) that preempts dynamic module loading. Exploitation requires an unusual configuration, and certain 2021 versions of Encode.pm (3.05 through 3.11). This issue occurs because the || operator evaluates @INC in a scalar context, and thus @INC has only an integer value. | ||||||||||||
CVSS v3 Severity: | 7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) 6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
| ||||||||||||
CVSS v2 Severity: | 6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
| ||||||||||||
Vulnerability Type: | CWE-427 | ||||||||||||
Vulnerability Consequences: | Gain Privileges | ||||||||||||
References: | Source: MITRE Type: CNA CVE-2021-36770 Source: XF Type: UNKNOWN encode-cve202136770-priv-esc(207932) Source: CCN Type: Encode GIT Repository version 3.12 to address CVE-2021-36770 Source: CONFIRM Type: Patch, Third Party Advisory https://github.com/dankogai/p5-encode/commit/527e482dc70b035d0df4f8c77a00d81f8d775c74 Source: CONFIRM Type: Patch, Third Party Advisory https://github.com/Perl/perl5/commit/c1a937fef07c061600a0078f4cb53fe9c2136bb9 Source: FEDORA Type: Mailing List, Third Party Advisory FEDORA-2021-44c65203cc Source: FEDORA Type: Mailing List, Third Party Advisory FEDORA-2021-92e07de1dd Source: CONFIRM Type: Third Party Advisory https://metacpan.org/dist/Encode/changes Source: CONFIRM Type: Third Party Advisory https://news.cpanel.com/unscheduled-tsr-10-august-2021/ Source: MISC Type: Third Party Advisory https://security-tracker.debian.org/tracker/CVE-2021-36770 Source: CONFIRM Type: Third Party Advisory https://security.netapp.com/advisory/ntap-20210909-0003/ | ||||||||||||
Vulnerable Configuration: | Configuration 1: Configuration 2: Configuration 3: ![]() | ||||||||||||
BACK |