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.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

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

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

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 Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html	Third Party Advisory
https://usn.ubuntu.com/4443-1/	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:thunderbird::::::::
	cpe:2.3:a:mozilla:firefox_esr::::::::
	cpe:2.3:a:mozilla:firefox::::::::

Configuration 2 (hide)

OR	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 11:15

Updated : 2023-02-02 14:23

NVD link : CVE-2020-15658

Mitre link : CVE-2020-15658

JSON object : View

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

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Products Affected

mozilla

firefox
firefox_esr
thunderbird

canonical

ubuntu_linux

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