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External Control of File Name or Path Affecting zcurl package, versions >=0.0.0

0.0
low

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.08% (34th percentile)
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NVD
3.7 low
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SUSE
4.5 medium
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Red Hat
3.7 low

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  • Snyk ID SNYK-COCOAPODS-ZCURL-5933308
  • published 5 Oct 2023
  • disclosed 5 Oct 2023
  • credit w0x42
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Introduced: 5 Oct 2023

CVE-2023-38546 Open this link in a new tab
CWE-73 Open this link in a new tab

How to fix?

There is no fixed version for zcurl.

Overview

Affected versions of this package are vulnerable to External Control of File Name or Path via the curl_easy_duphandle function, allowing an attacker to insert cookies into a running program using this library.

When this function is used to duplicate an easy handle with cookies enabled, the cookie-enable state is also cloned. However, the actual cookies are not cloned, and if the source handle did not read any cookies from a specific file on disk, the cloned handle would store the file name as none. Subsequent use of the cloned handle that does not explicitly set a source to load cookies from would inadvertently load cookies from a file named none.

Note:

This is only exploitable if a file named none exists and is readable in the current directory of the program using libcurl and in the correct file format.

Changelog:

2023-10-04: Initial publication

2023-10-11: Published updated information, including CWE, CVSS, official references and affected versions range.