CVE-2022-28345

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Summary

CVECVE-2022-28345
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-04-15 06:15:00 UTC
Updated2022-04-26 17:25:00 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: CWE-74

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Signal Signal All All All All

References

ReferenceSourceLinkTags
security/SICK-2022-42.md at master · sickcodes/security · GitHub MISC github.com
GitHub - zadewg/RIUS: RTLO Injection URI Spoofing MISC github.com
CVE-2022-28345 - Signal client for iOS version 5.33.2 and below are vulnerable to RTLO Injection URI Spoofing using malicious URLs such as gepj.net/selif#/moc.elpmaxe which would appear as example.com/#files/ten.jpeg - Sick Codes - Security Research, Hardware & Software Hacking, Consulting, Linux, IoT, Cloud, Embedded, Arch, Tweaks & Tips! MISC sick.codes
URI spoofing flaw could phish WhatsApp, Signal, Instagram, and iMessage users | Malwarebytes Labs MISC blog.malwarebytes.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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