FreeBSDC848059A-318B-11EC-AA15-0800270512F4fail2ban -- possible RCE vulnerability in mailing action using mailutils
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
0.018 Low
EPSS
Percentile
88.2%
Jakub Żoczek reports:
Command mail from mailutils package used in mail actions
like mail-whois can execute command if unescaped sequences
(\n~) are available in "foreign" input (for instance in
whois output).
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| FreeBSD | any | noarch | py36-fail2ban | < 0.11.2_3 | UNKNOWN |
| FreeBSD | any | noarch | py37-fail2ban | < 0.11.2_3 | UNKNOWN |
| FreeBSD | any | noarch | py38-fail2ban | < 0.11.2_3 | UNKNOWN |
| FreeBSD | any | noarch | py39-fail2ban | < 0.11.2_3 | UNKNOWN |
| FreeBSD | any | noarch | py310-fail2ban | < 0.11.2_3 | UNKNOWN |
Related
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
0.018 Low
EPSS
Percentile
88.2%