Feng Office 3.7.0.5 ck_upload_handler.php shtml File unrestricted upload

Summaryinfo

A vulnerability identified as critical has been detected in Feng Office 3.7.0.5. The impacted element is an unknown function of the file ck_upload_handler.php. This manipulation with the input <!--#exec cmd= as part of shtml File causes unrestricted upload. This vulnerability appears as CVE-2019-9623. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability has been found in Feng Office 3.7.0.5 and classified as critical. Affected by this vulnerability is some unknown functionality of the file ck_upload_handler.php. The manipulation with the input value <!--#exec cmd= leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Feng Office 3.7.0.5 allows remote attackers to execute arbitrary code via "<!--#exec cmd=" in a .shtml file to ck_upload_handler.php.

The bug was discovered 02/28/2019. The weakness was presented 03/07/2019 as EDB-ID 46471 as not defined exploit (Exploit-DB). The advisory is shared at exploit-db.com. This vulnerability is known as CVE-2019-9623 since 03/06/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:ck_upload_handler.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (46471). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• Feng Office

Version

• 3.7.0.5

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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