Quantum Secular Labs / Blog / Advisories

CVE-2011-3521: Sun JDK: Insecure deserialization

CVE-2011-3521 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Sun JDK. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE JDK and JRE, 7, 6 Update 27 and earlier, and 5.0 Update 31 and earlier allows remote untrusted Java Web Start applications and untrusted Java applets to affect confidentiality, integrity, and availability via unknown vectors related to Deserialization.

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access vector: Network. Exploitable remotely over the network.
  • Access complexity: Low. No special conditions are required.
  • Authentication: None. No authentication is needed.
  • Confidentiality impact: Complete. Total information disclosure.
  • Integrity impact: Complete. Total loss of integrity.
  • Availability impact: Complete. Total shutdown of the component.

Affected products

  • Sun JDK: 1.7.0; up to and including 1.6.0; 1.6.0; 1.6.0 update_10; 1.6.0 update_11; 1.6.0 update_12; 1.6.0 update_13; 1.6.0 update_14; 1.6.0 update_15; 1.6.0 update_16; 1.6.0 update_17; 1.6.0 update_18
  • Sun JRE: 1.7.0; up to and including 1.6.0; 1.6.0; 1.6.0 update_1; 1.6.0 update_10; 1.6.0 update_11; 1.6.0 update_12; 1.6.0 update_13; 1.6.0 update_14; 1.6.0 update_15; 1.6.0 update_16; 1.6.0 update_17

References