Deserialization in Oracle Access Manager
CVE-2020-2555
Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Caching,CacheStore,Invocation). Supported versions that are affected are 3.7.1.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle Coherence. Successful attacks of this vulnerability can result in takeover of Oracle Coherence. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Vulnerability class: Insecure Deserialization
EPSS: 0.971 (99.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Oracle Access_manager — versions 11.1.2.3.0
- Oracle Coherence — versions 3.7.1.0, 12.1.3.0.0, 12.2.1.3.0
- Oracle Commerce_platform — versions 11.0.0, 11.1.0, 11.2.0
- Oracle Communications_diameter_signaling_router
- Oracle Healthcare_data_repository — versions 7.0.1
- Oracle Rapid_planning — versions 12.1, 12.2
- Oracle Retail_assortment_planning — versions 15.0, 16.0
- Oracle Utilities_framework — versions 4.2.0.2.0, 4.2.0.3.0, 4.4.0.0.0
- Oracle Webcenter_portal — versions 12.2.1.3.0, 12.2.1.4.0
- Oracle Corporation Utilities Framework — versions 4.2.0.2.0, 4.2.0.3.0, 4.3.0.1.0-4.3.0.6.0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- secalert_us@oracle.com (x_refsource_MISC, Vendor Advisory)
- secalert_us@oracle.com (x_refsource_MISC, Vendor Advisory)
- secalert_us@oracle.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- secalert_us@oracle.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- secalert_us@oracle.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- secalert_us@oracle.com (Patch, x_refsource_MISC, Vendor Advisory)
- secalert_us@oracle.com (x_refsource_MISC, Vendor Advisory)
- secalert_us@oracle.com (Patch, x_refsource_MISC, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2020-2555?
- CVE-2020-2555 is a critical-severity vulnerability in Oracle Access Manager, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2020-01-15.
- How severe is CVE-2020-2555?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-2555 known to be exploited?
- Yes. CVE-2020-2555 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 171 public proof-of-concept repositories are indexed.