CloudForms VMware session expiration

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability, which was classified as critical, has been found in CloudForms (Cloud Software) (the affected version unknown). Affected by this issue is an unknown part of the component VMware Handler. The manipulation with an unknown input leads to a session expiration vulnerability. Using CWE to declare the problem leads to CWE-613. According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." Impacted is confidentiality, integrity, and availability. CVE summarizes:

A flaw was found in the CloudForms account configuration when using VMware. By default, a shared account is used that has privileged access to VMRC (VMWare Remote Console) functions that may not be appropriate for users of CloudForms (and thus this account). An attacker could use this vulnerability to view and make changes to settings in the VMRC and virtual machines controlled by it that they should not have access to.

The bug was discovered 10/10/2017. The weakness was disclosed 02/28/2018 (Website). The advisory is available at This vulnerability is handled as CVE-2017-12191 since 08/01/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required 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 141 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.




CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.4
VulDB Temp Score: 7.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.4
NVD Vector: 🔍



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

NVD Base Score: 🔍


Class: Session expiration
CWE: CWE-613
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

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


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


08/01/2017 🔍
10/10/2017 +70 days 🔍
02/28/2018 +141 days 🔍
02/28/2018 +0 days 🔍
03/01/2018 +1 days 🔍
02/16/2023 +1813 days 🔍


Advisory: RHSA-2018:0374
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12191 (🔍)


Created: 03/01/2018 08:05 AM
Updated: 02/16/2023 09:42 AM
Changes: 03/01/2018 08:05 AM (55), 01/09/2020 02:42 PM (2), 02/16/2023 09:42 AM (3)
Complete: 🔍


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