CVE-2017-6094

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Summary

CVECVE-2017-6094
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-12-20 20:29:00 UTC
Updated2018-01-11 15:10:00 UTC
DescriptionCPEs used by subscribers on the access network receive their individual configuration settings from a central GAPS instance. A CPE identifies itself by the MAC address of its WAN interface and a certain "chk" value (48bit) derived from the MAC. The algorithm used to compute the "chk" was disclosed by reverse engineering the CPE's firmware. As a result, it is possible to forge valid "chk" values for any given MAC address and therefore receive the configuration settings of other subscribers' CPEs. The configuration settings often contain sensitive values, for example credentials (username/password) for VoIP services. This issue affects Genexis B.V. GAPS up to 7.2.

Risk And Classification

Problem Types: CWE-200

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Genexis Gaps All All All All
Application Genexis Gaps All All All All

References

ReferenceSourceLinkTags
Full Disclosure: CVE-2017-6094 - Genexis GAPS Access Control Vulnerability FULLDISC seclists.org Exploit, Mailing List, Mitigation, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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