Vulnerability · Published Jul 20, 2021 · Assigned by oracle
CVE-2021-2351
High 8.3
In plain English
A high-severity security flaw in WebLogic Server from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% of all known vulnerabilities).
Official description
Vulnerability in the Advanced Networking Option component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1 and 19c. Difficult to exploit vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise Advanced Networking Option. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Advanced Networking Option, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Advanced Networking Option. Note: The July 2021 Critical Patch Update introduces a number of Native Network Encryption changes to deal with vulnerability CVE-2021-2351 and prevent the use of weaker ciphers. Customers should review: "Changes in Native Network Encryption with the July 2021 Critical Patch Update" (Doc ID 2791571.1). CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | WebLogic Server | 12.2.1.3.012.2.1.4.014.1.1.0.0 |
References
- https://www.oracle.com/security-alerts/cpujul2021.html x_refsource_MISC
- https://www.oracle.com/security-alerts/cpuoct2021.html x_refsource_MISC
- 20211210 [SYSS-2021-061] Oracle Database - NNE Connection Hijacking mailing-list, x_refsource_FULLDISC
- 20211210 [SYSS-2021-062] Oracle Database - Weak NNE Integrity Key Derivation mailing-list, x_refsource_FULLDISC
- https://www.oracle.com/security-alerts/cpujan2022.html x_refsource_MISC
- http://packetstormsecurity.com/files/165258/Oracle-Database-Weak-NNE-Integrity-Key-Derivation.html x_refsource_MISC
- http://packetstormsecurity.com/files/165255/Oracle-Database-Protection-Mechanism-Bypass.html x_refsource_MISC
- https://www.oracle.com/security-alerts/cpuapr2022.html x_refsource_MISC
- https://www.oracle.com/security-alerts/cpujul2022.html x_refsource_MISC
- Oracle Advisory vendor-advisory