Gentoo FoundationGLSA-202402-13TACACS+: Remote Code Execution
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 High
AI Score
Confidence
Low
0.003 Low
EPSS
Percentile
69.4%
Background
An updated version of Cisco’s TACACS+ server.
Description
A vulnerabilitiy has been discovered in TACACS+. Please review the CVE identifier referenced below for details.
Impact
A lack of input validation exists in tac_plus which, when pre or post auth commands are enabled, allows an attacker who can control the username, rem-addr, or NAC address sent to tac_plus to inject shell commands and gain remote code execution on the tac_plus server.
Workaround
There is no known workaround at this time.
Resolution
Gentoo has discontinued support for TACACS+. We recommend that users unmerge it:
# emerge --ask --depclean "net-nds/tac_plus"
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Gentoo | any | all | net-nds/tac_plus | <= 4.0.4.27a-r3 | UNKNOWN |
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 High
AI Score
Confidence
Low
0.003 Low
EPSS
Percentile
69.4%