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[R1] ManageEngine ServiceDesk Plus AuthError.jsp ErrorMsg Parameter Reflected XSS



ManageEngine ServiceDesk Plus contains a flaw that allows a reflected cross-site scripting (XSS) attack. This flaw exists because the AUthError.jsp script does not validate input to the ErrorMsg GET parameter before returning it to users. This may allow a context-dependent attacker to create a specially crafted request that would execute arbitrary script code in a user's browser session within the trust relationship between their browser and the server.


ManageEngine has released ServiceDesk Plus 9.0 Build 9241 to address this issue. They have also indicated that they will not be releasing hotfixes for the 9.1 tree.

Proof of Concept


Disclosure Timeline

2015-08-15 - Issue Discovered
2015-08-15 - Vendor Informed via [email protected]
2015-08-15 - Auto-acknowledgement, Issue ##2362921 created
2015-08-20 - Vendor pinged
2015-08-20 - CVE Requested
2015-08-24 - Vendor acknowledgement, Issue ##7283732 now assigned
2015-09-08 - Ping CVE regarding assignment
2015-09-24 - #7283732 closed w/o explanation
2015-09-24 - Mail vendor asking why, and what the disposition is
2015-09-25 - Vendor auto-opens a new ticket ##2456074
2015-11-24 - Ping vendor for update
2015-12-21 - Ping vendor for update
2016-02-17 - Ping vendor for update
2016-02-17 - Vendor auto-opens a new ticket ##2780684
2016-02-22 - Vendor says dev could not reproduce originally and closed ticket, asked for vulnerable URLs again
2016-02-22 - Resent info with additional information about XSS vulnerability exploitation
2016-03-10 - Vendor replies that they are still analyzing the issue
2016-03-18 - Tenable emails a new security contact asking for help resolving this
2016-04-14 - Ping vendor for update
2016-04-14 - Vendor auto-assigns ##7404496 and ##7404497
2016-04-25 - Vendor closes ##7404497## as they "have not heard from us".
2016-04-25 - Reply sent requesting assistance and providing this timeline
2016-04-25 - Vendor acks mail confirming ##7283732 was resolved. Re-sent timeline again to show lack of resolution
2016-04-27 - Vendor says it will be fixed end of May, will notify us when patch available.
2016-06-22 - Ping vendor for update
2016-06-22 - Vendor auto-opens two new tickets, ##7440149 and ##7440150
2016-06-23 - Vendor provides configuration-based workaround
2016-06-29 - Tenable informs vendor we will test ASAP
2016-06-29 - Vendor auto-opens two new tickets, ##7443584## and ##7443585##
2016-07-21 - Tenable confirms workaround fixes issue. Contacts vendor, removes extraneous ticket references, asks when it will be integrated into a release.
2016-07-21 - Vendor auto-opens ##3161231##, ##7453636##, and ##7453637##
2016-07-22 - Vendor acks mail, says they will get an ETA on a real patch. ##2255088## injected into subject line in addition to other tickets.
2016-07-25 - Vendor says they will be releasing it as a patch, but does not provide ETA
2016-08-18 - Ping vendor for patch release status.
2016-08-18 - Vendor auto-opens ##7467301##, ##7467302##, and ##7467303##.
2016-08-18 - Vendor says a "high priority issue" being worked on, no patch yet.
2916-09-29 - Ping vendor for update.
2016-09-30 - Vendor replies, will check with development team
2016-09-29 - Vendor auto-opens ##7487592##, ##7487593##, and ##7487594##
2016-10-03 - Vendor replies, "We are working on this issue and this is currently in testing phase."
2017-01-19 - Ping vendor for update.
2017-01-19 - Vendor auto-opens ##2255088##
2017-01-31 - Vendor releases 9.0 Build 9241, does not notify us
2017-03-31 - Ping vendor for update
2017-03-31 - Vendor auto-opens ##8042429##
2017-03-31 - Vendor says the issues reported were fixed. Provides two internal tracking IDs and builds, no indication which ID tracks with the single issue reported.
2017-03-31 - Tenable asks for clarification.
2017-04-03 - Vendor gives generic "upgrade the app to latest build" advice, no clarification provided.
2017-04-03 - Tenable requests clarification again.
2017-04-04 - Vendor says they would like to discuss this on a phone call.
2017-04-04 - Tenable requests response via email.
2017-04-11 - Vendor gives fixing info for 9.0 and SD cross reference
2017-04-12 - Tenable asks about 9.1 tree fix
2017-04-15 - Vendor says it is not fixed in the 9.1 series
2017-04-18 - Tenable asks for 9.1 ETA
2017-04-19 - Vendor says they will not release hotfixes for 9.1

All information within TRA advisories is provided “as is”, without warranty of any kind, including the implied warranties of merchantability and fitness for a particular purpose, and with no guarantee of completeness, accuracy, or timeliness. Individuals and organizations are responsible for assessing the impact of any actual or potential security vulnerability.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email [email protected]

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