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amazonAmazonALAS-2023-1682
HistoryJan 31, 2023 - 8:44 p.m.

Important: sudo

2023-01-3120:44:00
alas.aws.amazon.com
28

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.001 Low

EPSS

Percentile

18.3%

Issue Overview:

In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to append arbitrary entries to the list of files to process. This can lead to privilege escalation. Affected versions are 1.8.0 through 1.9.12.p1. The problem exists because a user-specified editor may contain a “–” argument that defeats a protection mechanism, e.g., an EDITOR=‘vim – /path/to/extra/file’ value. (CVE-2023-22809)

Affected Packages:

sudo

Issue Correction:
Run yum update sudo to update your system.

New Packages:

i686:  
    sudo-1.8.23-10.57.amzn1.i686  
    sudo-devel-1.8.23-10.57.amzn1.i686  
    sudo-debuginfo-1.8.23-10.57.amzn1.i686  
  
src:  
    sudo-1.8.23-10.57.amzn1.src  
  
x86_64:  
    sudo-debuginfo-1.8.23-10.57.amzn1.x86_64  
    sudo-devel-1.8.23-10.57.amzn1.x86_64  
    sudo-1.8.23-10.57.amzn1.x86_64  

Additional References

Red Hat: CVE-2023-22809

Mitre: CVE-2023-22809

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.001 Low

EPSS

Percentile

18.3%