The Signal app before 5.34 for iOS allows URI spoofing via RTLO injection. It incorrectly renders RTLO encoded URLs beginning with a non-breaking space, when there is a hash character in the URL. This technique allows a remote unauthenticated attacker to send legitimate looking links, appearing to be any website URL, by abusing the non-http/non-https automatic rendering of URLs. An attacker can spoof, for example, example.com, and masquerade any URL with a malicious destination. An attacker requires a subdomain such as gepj, txt, fdp, or xcod, which would appear backwards as jpeg, txt, pdf, and docx respectively.
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2022-04-15T05:28:57
Updated: 2024-08-03T05:56:14.765Z
Reserved: 2022-04-02T00:00:00
Link: CVE-2022-28345
Vulnrichment
No data.
NVD
Status : Modified
Published: 2022-04-15T06:15:06.597
Modified: 2024-11-21T06:57:10.860
Link: CVE-2022-28345
Redhat
No data.