CVE-2023-6209 — Path Traversal in Mozilla Firefox

CWE-22 — Path Traversal11 documents8 sources
Severity
6.5MEDIUMNVD
EPSS
0.4%
top 40.63%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird+1 more
Timeline
PublishedNov 21
Latest updateNov 27

Description

Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part in the path could be used to override the specified host. This could contribute to security problems in web sites. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages7 packages

▶CVEListV5mozilla/firefoxunspecified — 120
▶NVDmozilla/firefox< 120.0
▶CVEListV5mozilla/firefox_esrunspecified — 115.5.0
▶NVDmozilla/firefox_esr< 115.5.0
▶CVEListV5mozilla/thunderbirdunspecified — 115.5

Also affects: Debian Linux 10.0, 11.0, 12.0

🔴Vulnerability Details

3
CVEList
CVE-2023-6209: Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/↗2023-11-21
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GHSA
GHSA-c2fx-6qc9-26x9: Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/↗2023-11-21
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OSV
CVE-2023-6209: Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/↗2023-11-21
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📋Vendor Advisories

7
Ubuntu
Thunderbird vulnerabilities↗2023-11-27
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Ubuntu
Firefox vulnerabilities↗2023-11-23
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Red Hat
Mozilla: Incorrect parsing of relative URLs starting with "///"↗2023-11-21
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Debian
CVE-2023-6209: firefox - Relative URLs starting with three slashes were incorrectly parsed, and a path-tr...↗2023
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Mozilla
Mozilla Foundation Security Advisory 2023-50: CVE-2023-6209↗
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CVE-2023-6209 — Path Traversal in Mozilla Firefox | cvebase