ID CVE-2018-1116
Summary A flaw was found in polkit before version 0.116. The implementation of the polkit_backend_interactive_authority_check_authorization function in polkitd allows to test for authentication and trigger authentication of unrelated processes owned by other users. This may result in a local DoS and information disclosure.
References
Vulnerable Configurations
  • Debian Linux 8.0 (Jessie)
    cpe:2.3:o:debian:debian_linux:8.0
  • Canonical Ubuntu Linux 12.04 ESM (Extended Security Maintenance)
    cpe:2.3:o:canonical:ubuntu_linux:12.04:-:-:-:esm
  • Polkit Project Policykit (aka polkit)
    cpe:2.3:a:polkit_project:polkit
CVSS
Base: 3.6
Impact:
Exploitability:
CWE CWE-200
CAPEC
  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
  • Reusing Session IDs (aka Session Replay)
    This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.
  • Using Slashes in Alternate Encoding
    This attack targets the encoding of the Slash characters. An attacker would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the attacker many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.
nessus via4
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3717-1.NASL
    description Tavis Ormandy discovered that PolicyKit incorrectly handled certain invalid object paths. A local attacker could possibly use this issue to cause PolicyKit to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2015-3218) It was discovered that PolicyKit incorrectly handled certain duplicate action IDs. A local attacker could use this issue to cause PolicyKit to crash, resulting in a denial of service, or possibly escalate privileges. This issue only affected Ubuntu 14.04 LTS. (CVE-2015-3255) Tavis Ormandy discovered that PolicyKit incorrectly handled duplicate cookie values. A local attacker could use this issue to cause PolicyKit to crash, resulting in a denial of service, or possibly escalate privileges. This issue only affected Ubuntu 14.04 LTS. (CVE-2015-4625) Matthias Gerstner discovered that PolicyKit incorrectly checked users. A local attacker could possibly use this issue to cause authentication dialogs to show up for other users, leading to a denial of service or an information leak. (CVE-2018-1116). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 111135
    published 2018-07-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=111135
    title Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : policykit-1 vulnerabilities (USN-3717-1)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-FEF8A691A6.NASL
    description Security fix for CVE-2018-1116. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2019-01-03
    plugin id 120939
    published 2019-01-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=120939
    title Fedora 28 : polkit (2018-fef8a691a6)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-2163-1.NASL
    description This update for polkit fixes the following issues: Security issue fixed : - CVE-2018-1116: Fix uid comparison lacking in polkit_backend_interactive_authority_check_authorization (bsc#1099031). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 111509
    published 2018-08-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=111509
    title SUSE SLED12 / SLES12 Security Update : polkit (SUSE-SU-2018:2163-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-2165-1.NASL
    description This update for polkit fixes the following issues: Security issue fixed : - CVE-2018-1116: Fix uid comparison lacking in polkit_backend_interactive_authority_check_authorization (bsc#1099031). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2019-01-02
    plugin id 120069
    published 2019-01-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=120069
    title SUSE SLED15 / SLES15 Security Update : polkit (SUSE-SU-2018:2165-1)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2018-848.NASL
    description This update for polkit fixes the following issues : Security issue fixed : - CVE-2018-1116: Fix uid comparison lacking in polkit_backend_interactive_authority_check_authorization (bsc#1099031). This update was imported from the SUSE:SLE-15:Update update project.
    last seen 2019-02-21
    modified 2018-09-12
    plugin id 111629
    published 2018-08-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=111629
    title openSUSE Security Update : polkit (openSUSE-2018-848)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-83DF5DC658.NASL
    description Security fix for CVE-2018-1116. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-09-12
    plugin id 111471
    published 2018-08-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=111471
    title Fedora 27 : polkit (2018-83df5dc658)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2018-735.NASL
    description This update for polkit fixes the following issues : - CVE-2018-1116: Fixed trusting the client-supplied UID which could lead to a denial of service (too many dialogs) caused by local attackers (boo#1099031)
    last seen 2019-02-21
    modified 2018-09-12
    plugin id 111193
    published 2018-07-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=111193
    title openSUSE Security Update : polkit (openSUSE-2018-735)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-1448.NASL
    description It was discovered that there was a denial of service vulnerability in policykit-1, a framework for managing administrative policies and privileges. For Debian 8 'Jessie', this issue has been fixed in policykit-1 version 0.105-15~deb8u3. We recommend that you upgrade your policykit-1 packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-09-12
    plugin id 111389
    published 2018-07-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=111389
    title Debian DLA-1448-1 : policykit-1 security update
refmap via4
confirm
mlist [debian-lts-announce] 20180728 [SECURITY] [DLA-1448-1] policykit-1 security update
ubuntu USN-3717-2
Last major update 10-07-2018 - 15:29
Published 10-07-2018 - 15:29
Last modified 11-09-2018 - 15:14
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