Splunk up to 6.5.2 JSON Username information disclosure

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CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Splunk up to 6.5.2 (Log Management Software). This affects an unknown part of the component JSON Handler. The manipulation with an unknown input leads to a information disclosure vulnerability (Username). CWE is classifying the issue as CWE-200. This is going to have an impact on confidentiality, and integrity.

The bug was discovered 04/01/2017. The weakness was published 03/27/2017 by John Page (hyp3rlinx) as confirmed advisory (Website). The advisory is shared at splunk.com. This vulnerability is uniquely identified as CVE-2017-5607 since 01/28/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available.

A public exploit has been developed by John Page (hyp3rlinx) and been published 4 days after the advisory. It is declared as proof-of-concept. The exploit is shared for download at exploit-db.com. The vulnerability scanner Nessus provides a plugin with the ID 97100 (Splunk Enterprise < 5.0.17 / 6.0.13 / 6.1.12 / 6.2.13 / 6.3.9 / 6.4.5 / 6.5.2 or Splunk Light < 6.5.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context remote. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11788 (Splunk Enterprise and Light Multiple Vulnerabilities (SP-CAAAPZ3)). The code used by the exploit is:

<script>
Object.defineProperty( Object.prototype, "$C", { set:function(val){ 
   //prompt("Splunk Timed out:\nPlease Login to Splunk\nUsername: "+val.USERNAME, "Password")
for(var i in val){
 alert(""+i+" "+val[i]);
  }
 }
});
</script>

Upgrading to version 6.2.13.1 or 6.5.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 97265), SecurityTracker (ID 1038170) and Tenable (97100). Similar entry is available at 96548.

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VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.6

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.5
NVD Vector: 🔍

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfoedit

Name: Username
Class: Information disclosure / Username
CWE: CWE-200
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: John Page (hyp3rlinx)
Download: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97100
Nessus Name: Splunk Enterprise < 5.0.17 / 6.0.13 / 6.1.12 / 6.2.13 / 6.3.9 / 6.4.5 / 6.5.2 or Splunk Light < 6.5.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 100694
OpenVAS Name: Splunk Light Multiple XSS Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Splunk 6.2.13.1/6.5.3

Timelineinfoedit

01/28/2017 🔍
02/10/2017 +13 days 🔍
03/27/2017 +45 days 🔍
03/27/2017 +0 days 🔍
03/27/2017 +0 days 🔍
03/31/2017 +4 days 🔍
03/31/2017 +0 days 🔍
03/31/2017 +0 days 🔍
04/01/2017 +1 days 🔍
04/02/2017 +1 days 🔍
04/10/2017 +8 days 🔍
08/27/2020 +1235 days 🔍

Sourcesinfoedit

Advisory: splunk.com
Researcher: John Page (hyp3rlinx)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-5607 (🔍)
SecurityFocus: 97265 - Splunk Enterprise CVE-2017-5607 Information Disclosure Vulnerability
SecurityTracker: 1038170
OSVDB: - CVE-2017-5607 - Splunk - Information Disclosure Issue

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfoedit

Created: 04/02/2017 01:48 PM
Updated: 08/27/2020 04:53 PM
Changes: (6) vulnerability_discoverydate advisory_confirm_url source_cve_assigned source_osvdb_title source_securityfocus_date source_securityfocus_class
Complete: 🔍

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