CVE-2023-3824— Buffer overflow and overread in phar_dir_read()
Quick assessment
Affected
PHP Group PHP
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
PHP是一种在服务器端执行的脚本语言。 PHP存在安全漏洞，该漏洞源于函数phar_dir_read()存在缓冲区溢出漏洞，该漏洞会导致内存损坏或远程代码执行（RCE）。受影响的产品和版本：PHP 8.0.30之前的8.0版本，8.1.22之前的8.1版本，8.2.8之前的8.2版本。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2023-3824
Vulnerability Information
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Vulnerability Title
Buffer overflow and overread in phar_dir_read()
Source: CVE Program / CVE List V5
Vulnerability Description
In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
PHP 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PHP是一种在服务器端执行的脚本语言。 PHP存在安全漏洞，该漏洞源于函数phar_dir_read()存在缓冲区溢出漏洞，该漏洞会导致内存损坏或远程代码执行（RCE）。受影响的产品和版本：PHP 8.0.30之前的8.0版本，8.1.22之前的8.1版本，8.2.8之前的8.2版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-3824
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | None | https://github.com/NewLockBit/CVE-2023-3824-PHP-to-RCE-National-Crime-AgencyLEAK | POC Details |
| 2 | Research of CVE-2023-3824 (NCA - Lockbit) | https://github.com/NewLockBit/Research-of-CVE-2023-3824-NCA-Lockbit | POC Details |
| 3 | None | https://github.com/NewLockBit/CVE-2023-3824-PHP-to-RCE-LockBit-LEAK | POC Details |
| 4 | Vulnerability in PHP Phar files, due to buffer overflow, arises from insufficient length checks on file names within the Phar archive. Malicious actors can craft Phar files with long file names, leading to buffer overflow and potential execution of malicious code or data leakage. This vulnerability can be exploited for code execution CVE-2023-3824 | https://github.com/jhonnybonny/CVE-2023-3824 | POC Details |
| 5 | None | https://github.com/StayBeautiful-collab/CVE-2023-3824-PHP-to-RCE-LockBit-LEAK | POC Details |
| 6 | None | https://github.com/Nuki2u/CVE-2023-3824-PHP-to-RCE-LockBit-LEAK | POC Details |
| 7 | CVE-2023-3824 | https://github.com/m1sn0w/CVE-2023-3824 | POC Details |
| 8 | None | https://github.com/o2vi1te/CVE-2023-3824-PHP-to-RCE-LockBit-LEAK | POC Details |
| 9 | None | https://github.com/Nfttkcauzy/CVE-2023-3824-PHP-to-RCE-LockBit-LEAK | POC Details |
| 10 | None | https://github.com/Starla2u/CVE-2023-3824-PHP-to-RCE-LockBit-LEAK | POC Details |
| 11 | CVE-2023-3824 PoC | https://github.com/baesh3r/poc-CVE-2023-3824 | POC Details |
| 12 | PoC CVE 2023-3824 | https://github.com/fr33c0d3/poc-cve-2023-3824 | POC Details |
| 13 | poc-cve-2023-3824 | https://github.com/bluefish3r/poc-cve | POC Details |
| 14 | In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE. | https://github.com/exploitdevelop/CVE-2023-3824 | POC Details |
| 15 | None | https://github.com/dadosneurais/cve-2023-3824 | POC Details |
AI-Generated POC
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Vendor Advisories for CVE-2023-3824 (2)
Mailing List Discussions for CVE-2023-3824 (2)
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V. Comments for CVE-2023-3824
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