lambdaisland/uri 1.14.119 and earlier: authority-regex mishandles backslashes
CVE-2023-28628 Published on March 27, 2023

`authority-regex` returns the wrong authority in lambdaisland/uri
lambdaisland/uri is a pure Clojure/ClojureScript URI library. In versions prior to 1.14.120 `authority-regex` allows an attacker to send malicious URLs to be parsed by the `lambdaisland/uri` and return the wrong authority. This issue is similar to but distinct from CVE-2020-8910. The regex in question doesn't handle the backslash (`\`) character in the username correctly, leading to a wrong output. ex. a payload of `https://example.com\\@google.com` would return that the host is `google.com`, but the correct host should be `example.com`. Given that the library returns the wrong authority this may be abused to bypass host restrictions depending on how the library is used in an application. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Github Repository NVD

Vulnerability Analysis

CVE-2023-28628 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2023-28628. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
LOW
Integrity Impact:
LOW
Availability Impact:
NONE

Weakness Type

Use of Incorrectly-Resolved Name or Reference

The software uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.


Products Associated with CVE-2023-28628

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Lambdaisland Uri
 

Affected Versions

lambdaisland uri Version < 1.14.120 is affected by CVE-2023-28628

Vulnerable Packages

The following package name and versions may be associated with CVE-2023-28628

Package Manager Vulnerable Package Versions Fixed In
maven lambdaisland:uri < 1.14.120 1.14.120

Exploit Probability

EPSS
0.23%
Percentile
45.56%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.