GNOME gvfs up to 1.41.2 Move gvfsbackendadmin.c privilege escalation

A vulnerability, which was classified as very critical, has been found in GNOME gvfs up to 1.41.2. This issue affects some functionality of the file daemon/gvfsbackendadmin.c of the component Move Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles a file's user and group ownership during move (and copy with G_FILE_COPY_ALL_METADATA) operations from admin:// to file:// URIs, because root privileges are unavailable.

The weakness was published 05/29/2019. The identification of this vulnerability is CVE-2019-12449 since 05/29/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/30/2019).

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

Vendor

• GNOME

Name

• gvfs

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VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.8

VulDB Base Score: 9.8
VulDB Temp Score: 9.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Privilege escalation (CWE-275)
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍Recommended: no mitigation known

0-Day Time: 🔒

05/29/2019 Advisory disclosed
05/29/2019 +0 days CVE assigned
05/30/2019 +1 days VulDB entry created
05/30/2019 +0 days VulDB last updateVendor: gnome.org
CVE: CVE-2019-12449 (🔒)Created: 05/30/2019 09:11 AM
Complete: 🔍

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