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    CVE-2018-16860

    A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name (principal) in the request with any desired user name (principal) that exists in the KDC effectively obtaining a ticket for that principal.

    Published:May 14, 2019
    Last Modified:Nov 21, 2024
    EPS:Jul 31, 2019
    EPSS Score:0.02412
    CVSS Score:7.5

    Affected Products

    Vendor
    Heimdal Project
    Product
    Heimdal
    Vendor
    Samba
    Product
    Samba

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2022-3116 (CVSS 7.5) — The Heimdal Software Kerberos 5 implementation is vulnerable to a null pointer dereferance. An attacker with n…
    CVE-2022-45142 (CVSS 7.5) — The fix for CVE-2022-3437 included changing memcmp to be constant time and a workaround for a compiler bug by …
    CVE-2021-44758 (CVSS 7.5) — Heimdal before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a preferred…
    CVE-2022-44640 (CVSS 9.8) — Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1…
    CVE-2022-42898 (CVSS 8.8) — PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may…
    CVE-2022-41916 (CVSS 5.9) — Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a den…
    CVE-2019-12098 (CVSS 7.4) — In the client side of Heimdal before 7.6.0, failure to verify anonymous PKINIT PA-PKINIT-KX key exchange permi…
    CVE-2017-17439 (CVSS 7.5) — In Heimdal through 7.4, remote unauthenticated attackers are able to crash the KDC by sending a crafted UDP pa…
    CVE-2017-6594 (CVSS 7.5) — The transit path validation code in Heimdal before 7.3 might allow attackers to bypass the capath policy prote…
    CVE-2017-11103 (CVSS 8.1) — Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus' Lyre attacks because it obtai…

    References

    http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html
    http://seclists.org/fulldisclosure/2019/Aug/11
    http://seclists.org/fulldisclosure/2019/Aug/13
    http://seclists.org/fulldisclosure/2019/Aug/14
    http://seclists.org/fulldisclosure/2019/Aug/15
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16860
    https://seclists.org/bugtraq/2019/Aug/21
    https://seclists.org/bugtraq/2019/Aug/22
    https://seclists.org/bugtraq/2019/Aug/23
    https://seclists.org/bugtraq/2019/Aug/25
    https://security.gentoo.org/glsa/202003-52
    https://support.apple.com/HT210346
    https://support.apple.com/HT210348
    https://support.apple.com/HT210351
    https://support.apple.com/HT210353
    https://www.samba.org/samba/security/CVE-2018-16860.html
    https://www.synology.com/security/advisory/Synology_SA_19_23
    http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html
    http://seclists.org/fulldisclosure/2019/Aug/11
    http://seclists.org/fulldisclosure/2019/Aug/13
    http://seclists.org/fulldisclosure/2019/Aug/14
    http://seclists.org/fulldisclosure/2019/Aug/15
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16860
    https://seclists.org/bugtraq/2019/Aug/21
    https://seclists.org/bugtraq/2019/Aug/22
    https://seclists.org/bugtraq/2019/Aug/23
    https://seclists.org/bugtraq/2019/Aug/25
    https://security.gentoo.org/glsa/202003-52
    https://support.apple.com/HT210346
    https://support.apple.com/HT210348
    https://support.apple.com/HT210351
    https://support.apple.com/HT210353
    https://www.samba.org/samba/security/CVE-2018-16860.html
    https://www.synology.com/security/advisory/Synology_SA_19_23

    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