CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.3 | $0-$5k | 0.00 |
A vulnerability was found in unrar-free 0.0.1. It has been classified as critical. Affected is some unknown processing of the component RAR2 Archive Handler. 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 integrity, and availability. CVE summarizes:
unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a directory traversal vulnerability for RAR v2 archives: pathnames of the form ../[filename] are unpacked into the upper directory.
The bug was discovered 08/20/2017. The weakness was presented 09/03/2017 (Website). The advisory is available at openwall.com. This vulnerability is traded as CVE-2017-14120 since 09/03/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.
The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103036 (Debian DLA-1091-1 : unrar-free security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.
Upgrading eliminates this vulnerability. A possible mitigation has been published 4 days after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (103036). See 106099 and 106100 for similar entries.
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.3
VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Path traversalCWE: CWE-22
ATT&CK: T1006
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 103036
Nessus Name: Debian DLA-1091-1 : unrar-free security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 70810
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 1091-1] unrar-free security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
08/20/2017 🔍09/03/2017 🔍
09/03/2017 🔍
09/03/2017 🔍
09/04/2017 🔍
09/07/2017 🔍
09/08/2017 🔍
12/27/2022 🔍
Sources
Advisory: DLA 2567-1Status: Not defined
CVE: CVE-2017-14120 (🔍)
See also: 🔍
Entry
Created: 09/04/2017 09:04Updated: 12/27/2022 16:17
Changes: 09/04/2017 09:04 (64), 11/12/2019 19:38 (9), 12/27/2022 16:17 (4)
Complete: 🔍
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