CVE-2022-32155
In universal forwarder versions before 9.0, management services are available remotely by default.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.98%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In universal forwarder versions before 9.0, management services are available remotely by default. When not required, it introduces a potential exposure, but it is not a vulnerability. If exposed, we recommend each customer assess the potential severity specific to your environment. In 9.0, the universal forwarder now binds the management port to localhost preventing remote logins by default. If management services are not required in versions before 9.0, set disableDefaultPort = true in server.conf OR allowRemoteLogin = never in server.conf OR mgmtHostPort = localhost in web.conf. See Configure universal forwarder management security (https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_universal_forwarder_management_security) for more information on disabling the remote management services.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.98% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- splunk/splunk · splunk/splunk cloud platform
- Source
- prodsec@splunk.com
References
- https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_universal_forwarder_management_securityMitigation, Vendor Advisory
- https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/UpdatesRelease Notes, Vendor Advisory
- https://www.splunk.com/en_us/product-security/announcements/svd-2022-0605.htmlVendor Advisory
- https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_universal_forwarder_management_securityMitigation, Vendor Advisory
- https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/UpdatesRelease Notes, Vendor Advisory
- https://www.splunk.com/en_us/product-security/announcements/svd-2022-0605.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.