TripAdvisor Browsable Intent Arbitrary URL Loading Privilege Escalation Vulnerability

August 2nd, 2018
ZDI-18-877 ZDI-CAN-5335

CVE ID

CVE-2017-17226

CVSS Score

7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected Vendors

TripAdvisor

Affected Products

TripAdvisor

Vulnerability Details


This vulnerability allows remote attackers to escalate privileges on vulnerable installations of TripAdvisor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the handling of browsable intents. The issue results from improper validation on user-supplied URLs. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the application.

Additional Details

TripAdvisor has issued an update to correct this vulnerability. More details can be found at:
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180130-01-tripadvisor-en

Disclosure Timeline

  • 2017-11-01 - Vulnerability reported to vendor
  • 2018-08-02 - Coordinated public release of advisory
  • 2018-08-02 - Advisory Updated

Credit

Tencent Keen Security Lab

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