DeDeCMS 5.7 sys_verifies.php refiles code injection

Summaryinfo

A vulnerability classified as critical has been found in DeDeCMS 5.7. This affects an unknown part of the file sys_verifies.php. This manipulation of the argument refiles as part of Parameter causes code injection. This vulnerability appears as CVE-2018-9174. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in DeDeCMS 5.7 (Content Management System). It has been declared as critical. Affected by this vulnerability is some unknown processing of the file sys_verifies.php. The manipulation of the argument refiles as part of a Parameter leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

sys_verifies.php in DedeCMS 5.7 allows remote attackers to execute arbitrary PHP code via the refiles array parameter, because the contents of modifytmp.inc are under an attacker's control.

The bug was discovered 04/01/2018. The weakness was presented 04/02/2018 (Website). The advisory is shared at xz.aliyun.com. This vulnerability is known as CVE-2018-9174 since 04/01/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

By approaching the search of inurl:sys_verifies.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.

See VDB-115514 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Content Management System

Name

• DeDeCMS

Version

• 5.7

License

• commercial

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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CVSSv3info

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Duplicate

• Submit #XXXXXX: 上海卓卓网络科技有限公司 Xxxxxxx Xxxxxxx-xx.x.xxx-xxxx Xxx Xxxx Xxxxxxx (by Ting)
• Submit #XXXXXX: Xxxxxxx X.x.xxx Xxxx Xxxxxxxxx (by fushuling233)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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