kalilinux.co
http://kalilinux.co/2017/01/12/phpmailer-cve-2017-5223-local-information-disclosure-vulnerability-analysis CVE-2017-5223
MEDIUM
Local file disclosure in PHPMailer
Record summary
CVE-2017-5223 has a selected CVSS score of 5.5 (medium); EIP currently links 1 catalogued exploit and 1 repository PoC.
Description
An issue was discovered in PHPMailer before 5.2.22. PHPMailer's msgHTML method applies transformations to an HTML document to make it usable as an email message body. One of the transformations is to convert relative image URLs into attachments using a script-provided base directory. If no base directory is provided, it resolves to /, meaning that relative image URLs get treated as absolute local file paths and added as attachments. To form a remote vulnerability, the msgHTML method must be called, passed an unfiltered, user-supplied HTML document, and must not set a base directory.
Description source: CVE List
Exploitation context
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
phpmailer/phpmailerBrowse Packagist / phpmailer/phpmailer | GitHub Advisory | 5.0.0 to < 5.2.22 · Fixed in 5.2.22 | affected |
Proofs of concept
2Catalogued exploits
ExploitDBPHPMailer < 5.2.21 - Local File DisclosureExploitDB exploitby Maciek KrupaNot analyzed1 file
Repository PoCs
GitHubcscli/CVE-2017-5223Repository PoCby cscliStars: 1Not analyzed2 files
References
895328vdb entry
http://www.securityfocus.com/bid/95328 github.com
https://github.com/FriendsOfPHP/security-advisories/blob/master/phpmailer/phpmailer/CVE-2017-5223.yaml github.com
https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md github.com
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.22 github.com
https://github.com/PHPMailer/PHPMailer/security/advisories/GHSA-4x5h-cr29-fhp6 nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2017-5223 43056exploit
https://www.exploit-db.com/exploits/43056