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CVE-2021-23253

Published: Jan 11, 2021Updated: Nov 21, 2024 Sources: CVE List NVDNVD-CWE-Other
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.8%
Top 49.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Opera Mini for Android below 53.1 displays URL left-aligned in the address field. This allows a malicious attacker to craft a URL with a long domain name, e.g. www.safe.opera.com.attacker.com. With the URL being left-aligned, the user will only see the front part (e.g. www.safe.opera.com…) The exact amount depends on the phone screen size but the attacker can craft a number of different domains and target different phones. Starting with version 53.1 Opera Mini displays long URLs with the top-level domain label aligned to the right of the address field which mitigates the issue.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

NVD-CWE-Other

Affected Products

Opera Mini for Androidn/a
opera miniopera
On-prem
Consumer Software / browser
operacommercialNOConsumer Softwareaka opera software, opera software as

Exploitability

Official Patch Available

References

https://security.opera.com/address-bar-spoofing-in-opera-mini-opera-security-advisories/
security.opera.com

Timeline

Published
Jan 11, 2021
Last Updated
Nov 21, 2024

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