### [CVE-2018-1285](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1285)
![](https://img.shields.io/static/v1?label=Product&message=Apache%20log4net&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=XXE&color=brighgreen)

### Description

Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files. This allows for XXE-based attacks in applications that accept attacker-controlled log4net configuration files.

### POC

#### Reference
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2021.html

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/SeppPenner/outlookcaldavsynchronizer-german-readme
- https://github.com/alex-ermolaev/Log4NetSolarWindsSNMP-
- https://github.com/aluxnimm/outlookcaldavsynchronizer
- https://github.com/jnewman-sonatype/DotNetTest
- https://github.com/shiftingleft/dotnet-scm-test
- https://github.com/wwwuui2com61/53_15498
- https://github.com/wwwuuid2com47/62_15498