Borg Server 1.1.0/1.1.1/1.1.2 Access Control access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Borg Server 1.1.0/1.1.1/1.1.2. It has been rated as critical. Affected by this issue is some unknown functionality of the component Access Control. The manipulation leads to access control. This vulnerability is referenced as CVE-2017-15914. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Borg Server 1.1.0/1.1.1/1.1.2. This issue affects an unknown function of the component Access Control. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Incorrect implementation of access controls allows remote users to override repository restrictions in Borg servers 1.1.x before 1.1.3.

The bug was discovered 10/26/2017. The weakness was published 02/08/2018 (Website). It is possible to read the advisory at borgbackup.readthedocs.io. The identification of this vulnerability is CVE-2017-15914 since 10/26/2017. The exploitation is known to be easy. The attack may be initiated remotely. The successful exploitation requires a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 34 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104835 (FreeBSD : borgbackup -- remote users can override repository restrictions (0d369972-d4ba-11e7-bfca-005056925db4)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277001 (Fedora Security Update for borgbackup (FEDORA-2017-7b0a42338c)).

Upgrading to version 1.1.3 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104835). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: Access control
CWE: CWE-284 / CWE-266
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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Nessus ID: 104835
Nessus Name: FreeBSD : borgbackup -- remote users can override repository restrictions (0d369972-d4ba-11e7-bfca-005056925db4)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 69763
OpenVAS Name: Fedora Update for borgbackup FEDORA-2017-81115c3047
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Borg Server 1.1.3

Timelineinfo

10/26/2017 🔍
10/26/2017 +0 days 🔍
11/29/2017 +34 days 🔍
11/29/2017 +0 days 🔍
02/08/2018 +71 days 🔍
02/08/2018 +0 days 🔍
02/09/2018 +1 days 🔍
01/03/2020 +693 days 🔍

Sourcesinfo

Advisory: borgbackup.readthedocs.io
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-15914 (🔍)
GCVE (CVE): GCVE-0-2017-15914
GCVE (VulDB): GCVE-100-113015

Entryinfo

Created: 02/09/2018 08:42
Updated: 01/03/2020 08:27
Changes: 02/09/2018 08:42 (70), 01/03/2020 08:27 (3)
Complete: 🔍
Cache ID: 216:52F:103

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

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