CyberSecBulletin
CVE-2015-4902Exploited in the wildNVD status: Analyzed

Oracle Java SE Integrity Check

Published Updated By the CyberSecBulletin desk

CVE-2015-4902 is a medium-severity improper access control vulnerability in JDK from Oracle, with a CVSS 2.0 base score of 5.0 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected JDK versions: 1.6.0; 1.7.0; 1.8.0. The record does not name a fixed version, so check the vendor advisory. CISA added it to the Known Exploited Vulnerabilities catalogue on March 3, 2022, which means attacks have been observed in the wild.

Patch now

Attackers are already exploiting this vulnerability, according to CISA.

What to do

  1. Check which version of JDK you run against the affected versions below, and install the vendor's latest release.
  2. CISA's required action: Apply updates per vendor instructions.
  3. Read the advisory on oracle.com for workarounds and exact fixed builds.
  4. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
OracleJDK1.6.0; 1.7.0; 1.8.0Not stated
OracleJRE1.6.0; 1.7.0; 1.8.0Not stated
Red HatSatellite5.6; 5.7Not stated
Red HatEnterprise Linux Desktop5.0; 6.0; 7.0Not stated
Red HatEnterprise Linux EUS6.7; 7.2; 7.3; 7.4; 7.5Not stated
Red HatEnterprise Linux EUS Compute Node7.2; 7.3Not stated
Red HatEnterprise Linux For IBM Z Systems5.0_s390x; 6.0_s390x; 7.0_s390xNot stated
Red HatEnterprise Linux For IBM Z Systems EUS6.7_s390x; 7.2_s390x; 7.3_s390x; 7.4_s390x; 7.5_s390xNot stated
Red HatEnterprise Linux For Power Big Endian5.0_ppc; 6.0_ppc64; 7.0_ppc64Not stated
Red HatEnterprise Linux For Power Big Endian EUS6.7_ppc64; 7.2_ppc64; 7.3_ppc64; 7.4_ppc64; 7.5_ppc64Not stated
Red HatEnterprise Linux For Power Little Endian7.0_ppc64leNot stated
Red HatEnterprise Linux For Power Little Endian EUS7.2_ppc64le; 7.3_ppc64le; 7.4_ppc64le; 7.5_ppc64leNot stated
Red HatEnterprise Linux For Scientific Computing6.0; 7.0Not stated
Red HatEnterprise Linux Server5.0; 6.0; 7.0Not stated
Red HatEnterprise Linux Server From Rhui5.0; 6.0; 7.0Not stated
Red HatEnterprise Linux Workstation5.0; 6.0; 7.0Not stated
SUSELinux Enterprise Module For Legacy12Not stated
openSUSELeap42.1Not stated
openSUSEOpensuse13.2Not stated
SUSELinux Enterprise Server10; 11; 12Not stated
SUSELinux Enterprise Software Development Kit11; 12Not stated

Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Access vector
NetworkCan be exploited remotely over a network.
Access complexity
LowNo special conditions are needed.
Authentication
NoneNo login is needed.
Confidentiality
NoneNo data is disclosed.
Integrity
PartialSome data can be modified.
Availability
NoneAvailability is not affected.

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.15.3MediumCISA (ADP)
CVSS 2.05.0MediumNVD

Official description

Unspecified vulnerability in Oracle Java SE 6u101, 7u85, and 8u60 allows remote attackers to affect integrity via unknown vectors related to Deployment.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How developers prevent this class of flaw

  • Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
  • Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

More Improper Access Control vulnerabilities (CWE-284)

Timeline

  1. CVE record published.
  2. Added to CISA's Known Exploited Vulnerabilities catalogue.
  3. Deadline for US federal agencies to remediate, set by CISA.
  4. CISA published its SSVC assessment (exploitation: active, automatable: yes, technical impact: partial).
  5. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Other vulnerabilities in JDK

All JDK vulnerabilities

Recent Improper Access Control vulnerabilities

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