Vulnerability · Published Jun 11, 2020 · Assigned by mitre

CVE-2020-13998

High 7.5

In plain English

A high-severity authorization bypass via user-controlled key in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)1.4%top 27.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Citrix XenApp 6.5, when 2FA is enabled, allows a remote unauthenticated attacker to ascertain whether a user exists on the server, because the 2FA error page only occurs after a valid username is entered. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

https://gist.github.com/kampji/11e259d68ad98a6f0f898132f1961a96 x_refsource_MISC