VDB-122180 · CVE-2018-1002203 · GCVE-0-2018-1002203

unzipper npm Library up to 0.8.12 Extraction ZIP Archive Zip-Slip path traversal

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.7	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in unzipper npm Library up to 0.8.12. This vulnerability affects unknown code of the component Extraction. Such manipulation with the input ../ as part of ZIP Archive leads to path traversal (Zip-Slip). This vulnerability is referenced as CVE-2018-1002203. The attack can only be performed from a local environment. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in unzipper npm Library up to 0.8.12 (Software Library) and classified as problematic. Affected by this issue is some unknown functionality of the component Extraction. The manipulation with the input value ../ leads to a path traversal vulnerability (Zip-Slip). Using CWE to declare the problem leads to 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. Impacted is integrity, and availability. CVE summarizes:

unzipper npm library before 0.8.13 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.

The bug was discovered 04/13/2018. The weakness was published 07/25/2018 (GitHub Repository). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2018-1002203 since 07/25/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

The vulnerability was handled as a non-public zero-day exploit for at least 103 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 0.8.13 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Software Library

Name

unzipper npm Library

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.4
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Zip-Slip
Class: Path traversal / Zip-Slip
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: unzipper npm Library 0.8.13
Patch: github.com

Timelineinfo

04/13/2018 🔍
07/25/2018 +102 days 🔍
07/25/2018 +0 days 🔍
07/25/2018 +0 days 🔍
07/26/2018 +1 days 🔍
04/25/2023 +1734 days 🔍

Sourcesinfo

Advisory: 2220ddd5b58f6252069a4f99f9475441ad0b50cd
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-1002203 (🔍)
GCVE (CVE): GCVE-0-2018-1002203
GCVE (VulDB): GCVE-100-122180

Entryinfo

Created: 07/26/2018 07:44
Updated: 04/25/2023 15:34
Changes: 07/26/2018 07:44 (61), 03/10/2020 08:54 (2), 04/25/2023 15:28 (5), 04/25/2023 15:34 (1)
Complete: 🔍
Cache ID: 216::103