Title: Rapid7 AppSpider 6.12 Web Application Vulnerability Scanner Elevation Of Privilege
Advisory ID: ZSL-2016-5344
Type: Local
Impact: Privilege Escalation
Risk: (2/5)
Release Date: 22.07.2016

Summary

While today's malicious attackers pursue a variety of goals, they share a preferred channel of attack - the millions of custom web, mobile, and cloud applications companies deploy to serve their customers. AppSpider dynamically scans these applications for vulnerabilities across all modern technologies, provides tools that speed remediation, and monitors applications for changes.

Description

The application suffers from an unquoted search path issue impacting the services 'AppSpider REST Server', 'AppSpider REST Service' and 'AppSpiderUpgradeService' for Windows deployed as part of AppSpider solution. This could potentially allow an authorized but non-privileged local user to execute arbitrary code with elevated privileges on the system. A successful attempt would require the local user to be able to insert their code in the system root path undetected by the OS or other security applications where it could potentially be executed during application startup or reboot. If successful, the local user’s code would execute with the elevated privileges of the application.

Vendor

Rapid7, Inc. - https://www.rapid7.com

Affected Version

6.12.10.1

Tested On

Microsoft Windows 7 Professional SP1 (EN)
Microsoft Windows 7 Ultimate SP1 (EN)

Vendor Status

[05.07.2016] Vulnerability discovered.
[05.07.2016] Vendor contacted.
[06.07.2016] Vendor responds asking more details.
[06.07.2016] Sent details to the vendor.
[06.07.2016] Vendor forwards details to AppSpider team.
[08.07.2016] Vendor replies.
[13.07.2016] Asked vendor for status update.
[13.07.2016] Vendor confirms and fixes the vulnerability.
[20.07.2016] Vendor releases version 6.12.13 to address this issue.
[22.07.2016] Coordinated public security advisory released.

PoC

appspider_eop.txt

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] https://community.rapid7.com/docs/DOC-3455
[2] https://cxsecurity.com/issue/WLB-2016070174
[3] https://packetstormsecurity.com/files/138018
[4] https://www.exploit-db.com/exploits/40145/
[5] https://exchange.xforce.ibmcloud.com/vulnerabilities/115502

Changelog

[22.07.2016] - Initial release
[25.07.2016] - Added reference [2], [3] and [4]
[21.08.2016] - Added reference [5]

Contact

Zero Science Lab

Web: http://www.zeroscience.mk
e-mail: lab@zeroscience.mk