Published:2015/07/29  Last Updated:2015/07/29

JVN#46674982
yoyaku_v41 vulnerable to arbitrary file creation

Overview

yoyaku_v41 provided by Webservice-DIC contains a vulnerability that may allow a remote attacker to create arbitrary files.

Products Affected

  • yoyaku_v41

Description

yoyaku_v41 provided by Webservice-DIC is a software to manage conference room reservations. yoyaku_v41 contains a vulnerability that may allow a remote attacker to create arbitrary files (CWE-20).

Impact

An arbitrary file created by an attacker may result in arbitrary code being executed on the server.

Solution

Do not use yoyaku_v41
yoyaku_v41 is no longer being developed or maintained. It is recommended to stop using yoyaku_v41.

Vendor Status

Vendor Status Last Update Vendor Notes
Webservice-DIC Vulnerable 2015/07/29

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2015.07.29 (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) Authentication is not required to exploit the vulnerability.
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:7.5

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-2015-2977
JVN iPedia JVNDB-2015-000107