Published:2015/11/02  Last Updated:2015/11/02

JVN#04281281
ISUCON5 qualifier portal web application (eventapp) vulnerable to OS command injection

Overview

ISUCON5 qualifier portal web application (eventapp) contains an OS command injection vulnerability.

Products Affected

  • ISUCON5 qualifier portal web application (eventapp) versions prior to commit 150e3e6d851acb31a0b15ce93380a7dab14203fa

Description

ISUCON5 qualifier portal web application (eventapp) provided by ISUCON organizers contains an OS command injection (CWE-78) vulnerability.

Impact

A logged in attacker may execute arbitrary OS commands on the server.

Solution

Update the Software
Update to the latest version according to the information provided by the developer.

Vendor Status

Vendor Link
ISUCON organizers ISUCON 5 qualifier eventapp

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2015.11.02 (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) Specialized access conditions or extenuating circumstances do not exist.
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 considerable informational disclosure. Access to some system files is possible, but the attacker does not have control over what is obtained, or the scope of the loss is constrained.
Integrity Impact(I) None (N) Partial (P) Complete (C) Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.
Availability Impact(A) None (N) Partial (P) Complete (C) There is reduced performance or interruptions in resource availability.

Base Score:6.5

Credit

Shoji Baba reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2015-5673
JVN iPedia JVNDB-2015-000175