Vulnerability identifier: #VU69754
Vulnerability risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-200
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Mozilla Thunderbird
Client/Desktop applications /
Messaging software
Vendor: Mozilla
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the way quoted certain HTML tags are handled within the email client. If a Thunderbird user quoted from an HTML email, for example by replying
to the email, and the email contained either a VIDEO tag with the
POSTER attribute or an OBJECT tag with a DATA attribute, a network
request to the referenced remote URL was performed, regardless of a
configuration to block remote content. An image loaded from the POSTER
attribute was shown in the composer window. A remote attacker trick the victim into replying to a specially crafted email and force Thunderbird to initiate requests, potentially revealing sensitive information, such as IP address of the victim.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mozilla Thunderbird: 102.0 - 102.5.0
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2022-50/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.