Published:2015/10/07  Last Updated:2015/10/07

JVN#21025396
Multiple PHP code execution vulnerabilitles in Cybozu Garoon

Overview

Cybozu Garoon contains multiple PHP code execution vulnerabilities.

Products Affected

  • Cybozu Garoon 3.0.0 to 4.0.3

Description

Cybozu Garoon is a groupware. Cybozu Garoon contains multiple PHP code execution vulnerabilities.

  • [CyVDB-863] Cybozu Garoon allows remote authenticated users to execute arbitrary PHP code, [CyVDB-867] Cybozu Garoon allows remote authenticated users to execute arbitrary PHP code (CVE-2015-5646)
  • [CyVDB-866] Cybozu Garoon allows remote authenticated users to execute arbitrary PHP code in RSS Reader function (CVE-2015-5647)
For more details, refer to the information provided by the developer.

Impact

An authenticated attacker may execute arbitrary PHP code on the application server.

Solution

Apply the Patch
Apply the appropriate patch according to the information provided by the developer.

Vendor Status

Vendor Status Last Update Vendor Notes
Cybozu, Inc. Vulnerable 2015/10/07 Cybozu, Inc. website

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2015.10.07 (CVSS Base Metrics)

What is CVSS?

Measures Severity Description
Access Vector(AV) Local (L) Adjacent Network (A) Network (N) A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable".
Access Complexity(AC) High (H) Medium (M) Low (L) The access conditions are somewhat specialized.
Authentication(Au) Multiple (M) Single (S) None (N) The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).
Confidentiality Impact(C) None (N) Partial (P) Complete (C) There is total information disclosure, resulting in all system files being revealed.
Integrity Impact(I) None (N) Partial (P) Complete (C) There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.
Availability Impact(A) None (N) Partial (P) Complete (C) There is a total shutdown of the affected resource.

Base Score:8.5

Credit

Cybozu, Inc. reported this vulnerability to JPCERT/CC to notify users of its solution through JVN.
JPCERT/CC and Cybozu, Inc. coordinated under the Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2015-5646
CVE-2015-5647
JVN iPedia JVNDB-2015-000151