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    CVE-2012-6422

    The kernel in Samsung Galaxy S2, Galaxy Note 2, MEIZU MX, and possibly other Android devices, when running an Exynos 4210 or 4412 processor, uses weak permissions (0666) for /dev/exynos-mem, which allows attackers to read or write arbitrary physical memory and gain privileges via a crafted application, as demonstrated by ExynosAbuse.

    Published:Dec 18, 2012
    Last Modified:Apr 11, 2025
    EPS:Dec 18, 2012
    EPSS Score:0.06612
    CVSS Score:9.3

    Affected Products

    Vendor
    Meizu
    Product
    Mx
    Vendor
    Samsung
    Product
    Galaxy Note 2
    Vendor
    Samsung
    Product
    Galaxy S2

    Exploits

    http://forum.xda-developers.com/showthread.php?p=35469999http://forum.xda-developers.com/showthread.php?p=35469999https://github.com/wired0ut/CVE-2012-6422

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    References

    http://arstechnica.com/security/2012/12/developer-warns-of-critical-vulnerability-in-many-samsung-smartphones/
    http://forum.xda-developers.com/showthread.php?p=35469999
    http://forum.xda-developers.com/showthread.php?t=2051290
    http://osvdb.org/88467
    http://project-voodoo.org/articles/instant-fix-app-for-exynos-mem-abuse-vulnerability-no-root-required-reversible
    http://www.sammobile.com/2012/12/16/major-vulnerability-found-on-exynos-4-devices/
    http://www.securityweek.com/new-vulnerability-exposed-samsungs-android-devices
    http://arstechnica.com/security/2012/12/developer-warns-of-critical-vulnerability-in-many-samsung-smartphones/
    http://forum.xda-developers.com/showthread.php?p=35469999
    http://forum.xda-developers.com/showthread.php?t=2051290
    http://osvdb.org/88467
    http://project-voodoo.org/articles/instant-fix-app-for-exynos-mem-abuse-vulnerability-no-root-required-reversible
    http://www.sammobile.com/2012/12/16/major-vulnerability-found-on-exynos-4-devices/
    http://www.securityweek.com/new-vulnerability-exposed-samsungs-android-devices

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High