VDB-106306 · CVE-2017-8040 · BID 100617

Single Sign-On up to 1.3.3/1.4.2 on Cloud Foundry XML Data xml external entity reference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Single Sign-On up to 1.3.3/1.4.2 on Cloud Foundry and classified as critical. This affects an unknown part of the component XML Data Handler. Executing a manipulation can lead to xml external entity reference. This vulnerability is handled as CVE-2017-8040. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Single Sign-On up to 1.3.3/1.4.2 on Cloud Foundry. It has been declared as critical. This vulnerability affects an unknown code of the component XML Data Handler. The manipulation with an unknown input leads to a xml external entity reference vulnerability. The CWE definition for the vulnerability is CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. As an impact it is known to affect confidentiality, and availability. CVE summarizes:

In Single Sign-On for Pivotal Cloud Foundry (PCF) 1.3.x versions prior to 1.3.4 and 1.4.x versions prior to 1.4.3, an XXE (XML External Entity) attack was discovered in the Single Sign-On service dashboard. Privileged users can in some cases upload malformed XML leading to exposure of data on the Single Sign-On service broker file system.

The bug was discovered 08/31/2017. The weakness was released 09/09/2017 (Website). The advisory is available at pivotal.io. This vulnerability was named CVE-2017-8040 since 04/21/2017. The attack can be initiated remotely. A single authentication is needed for exploitation. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.3.4 or 1.4.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 100617†). Entry connected to this vulnerability is available at VDB-106307. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Xml external entity reference
CWE: CWE-611 / CWE-610
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: Single Sign-On 1.3.4/1.4.3

Timelineinfo

04/21/2017 🔍
08/31/2017 +132 days 🔍
08/31/2017 +0 days 🔍
09/08/2017 +8 days 🔍
09/09/2017 +1 days 🔍
09/09/2017 +0 days 🔍
11/14/2019 +796 days 🔍

Sourcesinfo

Advisory: pivotal.io
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8040 (🔍)
GCVE (CVE): GCVE-0-2017-8040
GCVE (VulDB): GCVE-100-106306
SecurityFocus: 100617 - Pivotal Single Sign-On for PCF CVE-2017-8040 XML External Entity Injection Vulnerability

See also: 🔍

Entryinfo

Created: 09/09/2017 20:34
Updated: 11/14/2019 10:15
Changes: 09/09/2017 20:34 (56), 11/14/2019 10:15 (10)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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