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    CVE-2016-7097

    The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.

    Published:May 26, 2016
    Last Modified:Apr 12, 2025
    EPS:Oct 16, 2016
    EPSS Score:0.00053
    CVSS Score:4.4

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg
    Vendor
    Redhat
    Product
    Rhel Extras Rt

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs
    CAPEC-104 Cross Zone Scripting
    CAPEC-114 Authentication Abuse
    CAPEC-115 Authentication Bypass
    CAPEC-127 Directory Indexing
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-151 Identity Spoofing
    CAPEC-17 Using Malicious Files
    CAPEC-194 Fake the Source of Data
    CAPEC-22 Exploiting Trust in Client
    CAPEC-39 Manipulating Opaque Client-based Data Tokens
    CAPEC-402 Bypassing ATA Password Security
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-5 Blue Boxing
    CAPEC-51 Poison Web Service Registry
    CAPEC-57 Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
    CAPEC-59 Session Credential Falsification through Prediction
    CAPEC-593 Session Hijacking
    CAPEC-60 Reusing Session IDs (aka Session Replay)
    CAPEC-633 Token Impersonation
    CAPEC-647 Collect Data from Registries
    CAPEC-650 Upload a Web Shell to a Web Server
    CAPEC-668 Key Negotiation of Bluetooth Attack (KNOB)
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-77 Manipulating User-Controlled Variables
    CAPEC-87 Forceful Browsing
    CAPEC-94 Adversary in the Middle (AiTM)

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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef
    http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2
    http://rhn.redhat.com/errata/RHSA-2017-0817.html
    http://www.openwall.com/lists/oss-security/2016/08/26/3
    http://www.securityfocus.com/bid/92659
    http://www.securitytracker.com/id/1038201
    http://www.spinics.net/lists/linux-fsdevel/msg98328.html
    http://www.ubuntu.com/usn/USN-3146-1
    http://www.ubuntu.com/usn/USN-3146-2
    http://www.ubuntu.com/usn/USN-3147-1
    https://access.redhat.com/errata/RHSA-2017:1842
    https://access.redhat.com/errata/RHSA-2017:2077
    https://access.redhat.com/errata/RHSA-2017:2669
    https://bugzilla.redhat.com/show_bug.cgi?id=1368938
    https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef
    https://source.android.com/security/bulletin/2017-04-01
    https://support.f5.com/csp/article/K31603170?utm_source=f5support&amp%3Butm_medium=RSS
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef
    http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2
    http://rhn.redhat.com/errata/RHSA-2017-0817.html
    http://www.openwall.com/lists/oss-security/2016/08/26/3
    http://www.securityfocus.com/bid/92659
    http://www.securitytracker.com/id/1038201
    http://www.spinics.net/lists/linux-fsdevel/msg98328.html
    http://www.ubuntu.com/usn/USN-3146-1
    http://www.ubuntu.com/usn/USN-3146-2
    http://www.ubuntu.com/usn/USN-3147-1
    https://access.redhat.com/errata/RHSA-2017:1842
    https://access.redhat.com/errata/RHSA-2017:2077
    https://access.redhat.com/errata/RHSA-2017:2669
    https://bugzilla.redhat.com/show_bug.cgi?id=1368938
    https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef
    https://source.android.com/security/bulletin/2017-04-01
    https://support.f5.com/csp/article/K31603170?utm_source=f5support&amp%3Butm_medium=RSS

    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