中危 解释冲突
CVE编号
CVE-2023-24813利用情况
暂无补丁情况
官方补丁披露时间
2023-02-08漏洞描述
Dompdf is an HTML to PDF converter written in php. Due to the difference in the attribute parser of Dompdf and php-svg-lib, an attacker can still call arbitrary URLs with arbitrary protocols. Dompdf parses the href attribute of `image` tags and respects `xlink:href` even if `href` is specified. However, php-svg-lib, which is later used to parse the svg file, parses the href attribute. Since `href` is respected if both `xlink:href` and `href` is specified, it's possible to bypass the protection on the Dompdf side by providing an empty `xlink:href` attribute. An attacker can exploit the vulnerability to call arbitrary URLs with arbitrary protocols if they provide an SVG file to the Dompdf. In PHP versions before 8.0.0, it leads to arbitrary unserialize, which will lead, at the very least, to arbitrary file deletion and might lead to remote code execution, depending on available classes. This vulnerability has been addressed in commit `95009ea98` which has been included in release version 2.0.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://github.com/dompdf/dompdf/commit/95009ea98230f9b084b040c34e3869ef3dccc9aa | |
| https://github.com/dompdf/dompdf/security/advisories/GHSA-56gj-mvh6-rp75 |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | dompdf_project | dompdf | 2.0.2 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | php-dompdf | * | Up to (excluding) 0.6.2+dfsg-3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | php-dompdf | * | Up to (excluding) 0.6.2+dfsg-3.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | php-dompdf | * | Up to (excluding) 2.0.3+dfsg-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | php-dompdf | * | Up to (excluding) 2.0.3+dfsg-1 | |||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 无需权限
- 影响范围 全局影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-436 | 解释冲突 |
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