Ss7-vulnerability-2016-eng.pdf

The "SS7-VULNERABILITY-2016-eng.pdf" whitepaper by Positive Technologies details how authentication flaws in the Signaling System No. 7 (SS7) protocol allow for SMS interception, location tracking, and call redirection. These legacy vulnerabilities, which impact 2G/3G networks, persist into 4G and 5G environments due to ongoing interoperability requirements. For an analysis of similar vulnerabilities in the Diameter protocol, see the ENISA report at enisa.europa.eu . SS7 exploit on the wiretapping part