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Directory Traversal vulnerability in Square Retrofit

High severity GitHub Reviewed Published Dec 21, 2018 to the GitHub Advisory Database • Updated Jan 9, 2023

Package

maven com.squareup.retrofit2:retrofit (Maven)

Affected versions

>= 2.0.0, < 2.5.0

Patched versions

2.5.0

Description

Square Retrofit versions from (including) 2.0 to 2.5.0 (excluding) contain a Directory Traversal vulnerability in RequestBuilder class, method addPathParameter. By manipulating the URL an attacker could add or delete resources otherwise unavailable to her. This attack appears to be exploitable via an encoded path parameter on POST, PUT or DELETE request. This vulnerability appears to have been fixed in 2.5.0 and later.

References

Published to the GitHub Advisory Database Dec 21, 2018
Reviewed Jun 16, 2020
Last updated Jan 9, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS score

0.380%
(74th percentile)

Weaknesses

CVE ID

CVE-2018-1000850

GHSA ID

GHSA-8p8g-f9vg-r7xr

Source code

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