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CVE-2017-7783

CVE-2017-7783

EPSS 13.7%
If a long user name is used in a username/password combination in a site URL (such as " http://UserName:Password@example.com"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.
Affected products
Mozilla · Firefox
public PoCs found — 2
cve_referencewww.exploit-db.com/exploits/43020/unverifiedexploitdbwww.exploit-db.com/exploits/43020unverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://bugzilla.mozilla.org/show_bug.cgi?id=1360842https://www.exploit-db.com/exploits/43020/https://www.mozilla.org/security/advisories/mfsa2017-18/http://www.securityfocus.com/bid/100401http://www.securitytracker.com/id/1039124