GitHub_MVULNRICHMENT:CVE-2024-23336CVE-2024-23336 Incomplete disallowed remote addresses list in MyBB
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
AI Score
Confidence
Low
EPSS
Percentile
26.4%
SSVC
Exploitation
none
Automatable
no
Technical Impact
partial
MyBB is a free and open source forum software. The default list of disallowed remote hosts does not contain the 127.0.0.0/8 block, which may result in a Server-Side Request Forgery (SSRF) vulnerability. The Configuration File’s Disallowed Remote Addresses list ($config['disallowed_remote_addresses']) contains the address 127.0.0.1, but does not include the complete block 127.0.0.0/8. MyBB 1.8.38 resolves this issue in default installations. Administrators of installed boards should update the existing configuration (inc/config.php) to include all addresses blocked by default. Additionally, users are advised to verify that it includes any other IPv4 addresses resolving to the server and other internal resources. Users unable to upgrade may manually add 127.0.0.0/8’ to their disallowed address list.
ADP Affected
[
{
"cpes": [
"cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*"
],
"vendor": "mybb",
"product": "mybb",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.8.38",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
AI Score
Confidence
Low
EPSS
Percentile
26.4%
SSVC
Exploitation
none
Automatable
no
Technical Impact
partial