YARD up to 0.9.10 file.rb path traversal

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in YARD up to 0.9.10. Affected by this issue is some unknown functionality in the library lib/yard/core_ext/file.rb. The manipulation with the input ../ results in path traversal. This vulnerability is cataloged as CVE-2017-17042. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in YARD up to 0.9.10. Affected is an unknown functionality in the library lib/yard/core_ext/file.rb. The manipulation with the input value ../ leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. CVE summarizes:

lib/yard/core_ext/file.rb in the server in YARD before 0.9.11 does not block relative paths with an initial ../ sequence, which allows attackers to conduct directory traversal attacks and read arbitrary files.

The bug was discovered 11/28/2017. The weakness was shared 11/28/2017 (GitHub Repository). The advisory is available at github.com. This vulnerability is traded as CVE-2017-17042 since 11/28/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 105206 (Fedora 26 : rubygem-yard (2017-c6c6e9beae)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171350 (OpenSUSE Security Update for rubygem-yard (openSUSE-SU-2018:1908-1)).

Upgrading to version 0.9.11 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105206). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
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: 105206
Nessus Name: Fedora 26 : rubygem-yard (2017-c6c6e9beae)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801478
OpenVAS Name: Fedora Update for rubygem-yard FEDORA-2017-c6c6e9beae
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: YARD 0.9.11
Patch: github.com

Timelineinfo

11/28/2017 🔍
11/28/2017 +0 days 🔍
11/28/2017 +0 days 🔍
11/28/2017 +0 days 🔍
11/29/2017 +1 days 🔍
12/12/2017 +13 days 🔍
12/13/2017 +1 days 🔍
01/16/2023 +1860 days 🔍

Sourcesinfo

Advisory: FEDORA-2017-c6c6e9beae
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-17042 (🔍)
GCVE (CVE): GCVE-0-2017-17042
GCVE (VulDB): GCVE-100-110034

Entryinfo

Created: 11/29/2017 07:44
Updated: 01/16/2023 14:15
Changes: 11/29/2017 07:44 (73), 12/11/2019 08:29 (3), 01/16/2023 14:11 (5), 01/16/2023 14:15 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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