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Exposure of Sensitive Information to an Unauthorized Actor


Severity Medium
Score 5/10


Cisco Collaboration Server (CCS) 5 allows remote attackers to read the source code of JHTML files via URL encoded characters in the filename extension, as demonstrated by (1) changing .jhtml to %2Ejhtml, (2) changing .jhtml to .jhtm%6C, (3) appending %00 after .jhtml, and (4) appending %c0%80 after .jhtml, related to the (a) doc/docindex.jhtml, (b) browserId/wizardForm.jhtml, (c) webline/html/forms/callback.jhtml, (d) webline/html/forms/callbackICM.jhtml, (e) webline/html/agent/AgentFrame.jhtml, (f) webline/html/agent/default/badlogin.jhtml, (g) callme/callForm.jhtml, (h) webline/html/multichatui/nowDefunctWindow.jhtml, (i) browserId/wizard.jhtml, (j) admin/CiscoAdmin.jhtml, (k) msccallme/mscCallForm.jhtml, and (l) webline/html/admin/wcs/LoginPage.jhtml components.

  • LOW
  • NONE
  • NONE
  • NONE

CWE-200 - Information Exposure

An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.


Advisory Timeline

  • Published