Cloud Foundry Cloud Controller up to 1.77.x Bit-Service improper authorization

Summaryinfo

A vulnerability, which was classified as critical, has been found in Cloud Foundry Cloud Controller up to 1.77.x. The impacted element is an unknown function of the component Bit-Service. The manipulation leads to improper authorization. This vulnerability is traded as CVE-2019-3785. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cloud Foundry Cloud Controller up to 1.77.x (Cloud Software). This issue affects an unknown functionality of the component Bit-Service. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Cloud Foundry Cloud Controller, versions prior to 1.78.0, contain an endpoint with improper authorization. A remote authenticated malicious user with read permissions can request package information and receive a signed bit-service url that grants the user write permissions to the bit-service.

The bug was discovered 03/12/2019. The weakness was shared 03/13/2019 (Website). It is possible to read the advisory at cloudfoundry.org. The identification of this vulnerability is CVE-2019-3785 since 01/03/2019. The attack may be initiated remotely. The successful exploitation needs a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.78.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Cloud Software

Name

• Cloud Foundry Cloud Controller

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37
• 1.38
• 1.39
• 1.40
• 1.41
• 1.42
• 1.43
• 1.44
• 1.45
• 1.46
• 1.47
• 1.48
• 1.49
• 1.50
• 1.51
• 1.52
• 1.53
• 1.54
• 1.55
• 1.56
• 1.57
• 1.58
• 1.59
• 1.60
• 1.61
• 1.62
• 1.63
• 1.64
• 1.65
• 1.66
• 1.67
• 1.68
• 1.69
• 1.70
• 1.71
• 1.72
• 1.73
• 1.74
• 1.75
• 1.76
• 1.77

CPE 2.3info

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CPE 2.2info

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