VDB-94913 · CVE-2016-10100 · BID 95203

Borg up to 1.0.8 Archive Name Overwrite input validation

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 Borg up to 1.0.8. It has been rated as critical. Impacted is an unknown function of the component Archive Name Handler. The manipulation leads to input validation (Overwrite). This vulnerability is listed as CVE-2016-10100. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Borg up to 1.0.8. It has been rated as critical. This issue affects an unknown function of the component Archive Name Handler. The manipulation with an unknown input leads to a input validation vulnerability (Overwrite). Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is integrity, and availability. The summary by CVE is:

Borg (aka BorgBackup) before 1.0.9 has a flaw in the way duplicate archive names were processed during manifest recovery, potentially allowing an attacker to overwrite an archive.

The bug was discovered 12/20/2016. The weakness was presented 01/02/2017 (Website). The advisory is shared at borgbackup.readthedocs.io. The identification of this vulnerability is CVE-2016-10100 since 01/02/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.0.9 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 95203†). See VDB-94912 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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

Name: Overwrite
Class: Input validation / Overwrite
CWE: CWE-20
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: Borg 1.0.9

Timelineinfo

12/20/2016 🔍
01/02/2017 +13 days 🔍
01/02/2017 +0 days 🔍
01/02/2017 +0 days 🔍
01/02/2017 +0 days 🔍
01/03/2017 +1 days 🔍
01/03/2017 +0 days 🔍

Sourcesinfo

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

CVE: CVE-2016-10100 (🔍)
GCVE (CVE): GCVE-0-2016-10100
GCVE (VulDB): GCVE-100-94913
SecurityFocus: 95203 - Borg CVE-2016-10100 Spoofing Vulnerability
OSVDB: - CVE-2016-10100 - BorgBackup - Spoofing Issue

See also: 🔍

Entryinfo

Created: 01/03/2017 14:42
Changes: 01/03/2017 14:42 (66)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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