High severity · published Oct 28, 2020
CVE-2020-27978
Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw
7.5
CVSS
1.9%
EPSS
No
On KEV
Description
Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote unauthenticated attacker can cause a login flow to trigger Java heap exhaustion due to the creation of objects in the Java Servlet container session.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IP
Identity Provider · Shibboleth
3.0.0 before 3.4.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-27978
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-27978
Vendor Advisory
https://shibboleth.net/community/advisories/secadv_20191002.txt
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