CVE Vulnerability

CVE-2020-15658

The code for downloading files did not properly take care of special characters, which led to an attacker being able to cut off the file ending at an earlier position, leading to a different file type being downloaded than shown in the dialog. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.mozilla.org/security/advisories/mfsa2020-32/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-30/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-33/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1637745 Issue Tracking Permissions Required
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html Third Party Advisory
https://usn.ubuntu.com/4443-1/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Information

Published : 2020-08-10 06:15

Updated : 2023-02-02 10:23

NVD link : CVE-2020-15658

Mitre link : CVE-2020-15658

Products Affected

Firefox Esr

Mozilla

CWE
CWE-754