canonical ubuntu-linux CVE-2022-27780 vulnerability in Canonical and Other Products
Published on June 2, 2022

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The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2022-27780 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. An automatable proof of concept (POC) exploit exists. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.

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

Weakness Type

What is a Hex Encoding Vulnerability?

The software does not properly handle when all or part of an input has been URL encoded.

CVE-2022-27780 has been classified to as a Hex Encoding vulnerability or weakness.


Products Associated with CVE-2022-27780

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2022-27780 are published in these products:

Canonical Ubuntu Linux
 
Haxx Curl
 
NetApp Clustered Data Ontap
 
NetApp Solidfire Hci Management Node
 
NetApp Solidfire Enterprise Sds Hci Storage Node
 
Splunk Universal Forwarder
 

Exploit Probability

EPSS
0.13%
Percentile
31.91%

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.