VDB-100887 · CVE-2016-6877 · BID 98341

Citrix XenMobile Server up to 10.5.0 HTTP 302 Redirect Host Header input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in Citrix XenMobile Server up to 10.5.0 and classified as critical. The affected element is an unknown function of the component HTTP 302 Redirect Handler. Performing a manipulation as part of Host Header results in input validation. This vulnerability is reported as CVE-2016-6877. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Citrix XenMobile Server up to 10.5.0 (Connectivity Software). It has been classified as critical. This affects an unknown part of the component HTTP 302 Redirect Handler. The manipulation as part of a Host Header leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

Citrix XenMobile Server before 10.5.0.24 allows man-in-the-middle attackers to trigger HTTP 302 redirections via vectors involving the HTTP Host header and a cached page.

The bug was discovered 07/20/2016. The weakness was disclosed 05/05/2017 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2016-6877 since 08/18/2016. The exploitability is told to be difficult. 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. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 289 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 10.5.0.24 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 98341†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: XenMobile Server 10.5.0.24

Timelineinfo

07/20/2016 🔍
08/18/2016 +29 days 🔍
05/05/2017 +260 days 🔍
05/05/2017 +0 days 🔍
05/05/2017 +0 days 🔍
05/06/2017 +1 days 🔍
08/06/2024 +2649 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: securityfocus.com⛔
Researcher: Michael Born, Will Caput
Status: Not defined

CVE: CVE-2016-6877 (🔍)
GCVE (CVE): GCVE-0-2016-6877
GCVE (VulDB): GCVE-100-100887
SecurityFocus: 98341 - Citrix XenMobile Server CVE-2016-6877 Host Header Injection Vulnerability
OSVDB: - CVE-2016-6877 - Citrix - Xenmobile Server - Low

Entryinfo

Created: 05/06/2017 18:30
Updated: 08/06/2024 05:16
Changes: 05/06/2017 18:30 (63), 09/24/2020 09:33 (4), 12/22/2020 13:10 (3), 08/06/2024 05:16 (27)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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