Two remote code execution vulnerabilities in JustSystems Ichitaro



| Updated: 2017-03-01
Risk Critical
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2010-3915
CVE-2010-3916
CWE-ID CWE-120
CWE-20
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerability #2 is being exploited in the wild.
Vulnerable software
 Ichitaro
Client/Desktop applications / Office applications

Vendor JustSystems Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU3047

Risk: Critical

CVSSv4.0: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2010-3915

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when handling specially crafted office documents. A remote attacker can create a specially crafted document, trick the victim into opening it, cause buffer overflow and execute arbitrary code on vulnerable system.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Note: this vulnerability is being actively exploited.

Mitigation

Install patch from vendor's website.

Vulnerable software versions

Ichitaro: 2004 - 2010

CPE2.3 External links

https://www.justsystems.com/jp/info/js10003.html
https://www.symantec.com/connect/blogs/new-ichitaro-vulnerability-confirmed


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.

2) Improper input validation

EUVDB-ID: #VU5901

Risk: Critical

CVSSv4.0: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2010-3916

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to unknown error when handling specially crafted office documents. A remote attacker can create a specially crafted document, trick the victim into opening it, cause unspecified error and execute arbitrary code on vulnerable system.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Note: this vulnerability is being actively exploited.

Mitigation

Install patch from vendor's website.

Vulnerable software versions

Ichitaro: 2004 - 2010

CPE2.3 External links

https://www.justsystems.com/jp/info/js10003.html
https://www.symantec.com/connect/blogs/new-ichitaro-vulnerability-confirmed


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.



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