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    CVE-2019-12816

    Modules.cpp in ZNC before 1.7.4-rc1 allows remote authenticated non-admin users to escalate privileges and execute arbitrary code by loading a module with a crafted name.

    Published:Jun 15, 2019
    Last Modified:Nov 21, 2024
    EPS:Jun 15, 2019
    EPSS Score:0.02851
    CVSS Score:8.8

    Affected Products

    Vendor
    Znc
    Product
    Znc

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-20 Improper Input Validation

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-104 Cross Zone Scripting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-109 Object Relational Mapping Injection
    CAPEC-110 SQL Injection through SOAP Parameter Tampering
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-136 LDAP Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-153 Input Data Manipulation
    CAPEC-182 Flash Injection
    CAPEC-209 XSS Using MIME Type Mismatch
    CAPEC-22 Exploiting Trust in Client
    CAPEC-23 File Content Injection
    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-261 Fuzzing for garnering other adjacent user/sensitive data
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-473 Signature Spoof
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-588 DOM-Based XSS
    CAPEC-63 Cross-Site Scripting (XSS)
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-664 Server Side Request Forgery
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-73 User-Controlled Filename
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-81 Web Server Logs Tampering
    CAPEC-83 XPath Injection
    CAPEC-85 AJAX Footprinting
    CAPEC-88 OS Command Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Related CVEs

    CVE-2024-39844 (CVSS 9.8) — In ZNC before 1.9.1, remote code execution can occur in modtcl via a KICK.…
    CVE-2020-13775 (CVSS 6.5) — ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dere…
    CVE-2010-2488 (CVSS 7.5) — NULL pointer dereference vulnerability in ZNC before 0.092 caused by traffic stats when there are unauthentica…
    CVE-2019-9917 (CVSS 6.5) — ZNC before 1.7.3-rc1 allows an existing remote user to cause a Denial of Service (crash) via invalid encoding.…
    CVE-2018-14056 (CVSS 5.3) — ZNC before 1.7.1-rc1 is prone to a path traversal flaw via ../ in a web skin name to access files outside of t…
    CVE-2018-14055 (CVSS 6.5) — ZNC before 1.7.1-rc1 does not properly validate untrusted lines coming from the network, allowing a non-admin …
    CVE-2014-9403 (CVSS 4) — The CWebAdminMod::ChanPage function in modules/webadmin.cpp in ZNC before 1.4 allows remote authenticated user…
    CVE-2013-2130 (CVSS 4) — ZNC 1.0 allows remote authenticated users to cause a denial of service (NULL pointer reference and crash) via …
    CVE-2010-2812 (CVSS 5) — Client.cpp in ZNC 0.092 allows remote attackers to cause a denial of service (exception and daemon crash) via …
    CVE-2010-2934 (CVSS 5) — Multiple unspecified vulnerabilities in ZNC 0.092 allow remote attackers to cause a denial of service (excepti…

    References

    http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00037.html
    http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00018.html
    https://github.com/znc/znc/commit/8de9e376ce531fe7f3c8b0aa4876d15b479b7311
    https://github.com/znc/znc/compare/be1b6bc...d1997d6
    https://lists.debian.org/debian-lts-announce/2019/06/msg00017.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4O24TQOB73X57GACLZVMRVUK4UKHLE5G/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NHR6OD52FQAG5ZPZ42NJM2T765C3V2XC/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEESIGRNFLZUWXZPDGXAZ7JZTHYBDJ7G/
    https://seclists.org/bugtraq/2019/Jun/23
    https://security.gentoo.org/glsa/201908-15
    https://usn.ubuntu.com/4044-1/
    http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00037.html
    http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00018.html
    https://github.com/znc/znc/commit/8de9e376ce531fe7f3c8b0aa4876d15b479b7311
    https://github.com/znc/znc/compare/be1b6bc...d1997d6
    https://lists.debian.org/debian-lts-announce/2019/06/msg00017.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4O24TQOB73X57GACLZVMRVUK4UKHLE5G/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NHR6OD52FQAG5ZPZ42NJM2T765C3V2XC/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEESIGRNFLZUWXZPDGXAZ7JZTHYBDJ7G/
    https://seclists.org/bugtraq/2019/Jun/23
    https://security.gentoo.org/glsa/201908-15
    https://usn.ubuntu.com/4044-1/

    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