High severity · published Jan 24, 2020
CVE-2020-7226
CiphertextHeader.java in Cryptacular 1.2.3, as used in Apereo CAS and other products, allows attackers to trigger excessive memory allocation during a decode operation, because…
7.5
CVSS
3.3%
EPSS
No
On KEV
Description
CiphertextHeader.java in Cryptacular 1.2.3, as used in Apereo CAS and other products, allows attackers to trigger excessive memory allocation during a decode operation, because the nonce array length associated with "new byte" may depend on untrusted input within the header of encoded data.
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)3.3% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WS
WebLogic Server · Oracle
12.2.1.4.0; 14.1.1.0.0 · source: NVD
CS
Communications Services Gatekeeper · Oracle
7.0 · source: NVD
CR
Cryptacular · VT
before 1.1.4; 1.2.0 before 1.2.4 · source: NVD
WS
Webcenter Sites · Oracle
12.2.1.3.0; 12.2.1.4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7226
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-7226
Patch
https://github.com/apereo/cas/commit/8810f2b6c71d73341d4dde6b09a18eb46cfd6d45
Patch
https://github.com/apereo/cas/commit/93b1c3e9d90e36a19d0fa0f6efb863c6f0235e75
Patch
https://github.com/apereo/cas/commit/a042808d6adbbf44753d52c55cac5f533e24101f
Patch
https://github.com/apereo/cas/pull/4685
Exploit
https://github.com/vt-middleware/cryptacular/blob/fafccd07ab1214e3588a35afe3c361519129605f/src/main/java/org/cryptacular/CiphertextHeader.java#L153
Exploit
https://github.com/vt-middleware/cryptacular/blob/master/src/main/java/org/cryptacular/CiphertextHeader.java#L153
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