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Assessment Title
Rule Text
The SUSE operating system tool zypper must have gpgcheck enabled.
Description
Discussion Text
Changes to any software components can have significant effects on the overall security of SLES 15. This requirement ensures the software has not been tampered with and has been provided by a trusted vendor.
Accordingly, patches, service packs, device drivers, or SLES 15 components must be signed with a certificate recognized and approved by the organization.
Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This ensures the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. SLES 15 should not have to verify the software again. This requirement does not mandate DoW certificates for this purpose; however, the certificate used to verify the software must be from an approved Certification Authority (CA).
For zypper on SUSE Linux Enterprise systems, GPG signature checking is enabled by default for all repositories, even if it is not explicitly set in "/etc/zypp/zypp.conf" or individual .repo files. The presence of the gpgcheck setting in repository files (like gpgcheck=1) or a global zypp.conf entry would override this default behavior if a user wanted to disable it (e.g., gpgcheck=0), but its absence simply means the default is in effect.
Accordingly, patches, service packs, device drivers, or SLES 15 components must be signed with a certificate recognized and approved by the organization.
Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This ensures the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. SLES 15 should not have to verify the software again. This requirement does not mandate DoW certificates for this purpose; however, the certificate used to verify the software must be from an approved Certification Authority (CA).
For zypper on SUSE Linux Enterprise systems, GPG signature checking is enabled by default for all repositories, even if it is not explicitly set in "/etc/zypp/zypp.conf" or individual .repo files. The presence of the gpgcheck setting in repository files (like gpgcheck=1) or a global zypp.conf entry would override this default behavior if a user wanted to disable it (e.g., gpgcheck=0), but its absence simply means the default is in effect.
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