ID CVE-2018-10928
Summary A flaw was found in RPC request using gfs3_symlink_req in glusterfs server which allows symlink destinations to point to file paths outside of the gluster volume. An authenticated attacker could use this flaw to create arbitrary symlinks pointing anywhere on the server and execute arbitrary code on glusterfs server nodes.
References
Vulnerable Configurations
  • Debian Linux 8.0 (Jessie)
    cpe:2.3:o:debian:debian_linux:8.0
  • Red Hat Enterprise Linux 6.0
    cpe:2.3:o:redhat:enterprise_linux:6.0
  • Red Hat Enterprise Linux (RHEL) 7.0 (7)
    cpe:2.3:o:redhat:enterprise_linux:7.0
  • Red Hat Enterprise Linux Server 6.0
    cpe:2.3:o:redhat:enterprise_linux_server:6.0
  • RedHat Enterprise Linux Server 7.0
    cpe:2.3:o:redhat:enterprise_linux_server:7.0
  • Red Hat Gluster Storage 3.0
    cpe:2.3:a:redhat:gluster_storage:3.0
  • Red Hat Virtualization Host 4.0
    cpe:2.3:a:redhat:virtualization_host:4.0
  • Red Hat Virtualization 4.0
    cpe:2.3:o:redhat:virtualization:4.0
CVSS
Base: 6.5
Impact:
Exploitability:
CWE CWE-59
CAPEC
  • Symlink Attack
    An attacker positions a symbolic link in such a manner that the targeted user or application accesses the link's endpoint, assuming that it is accessing a file with the link's name. The endpoint file may be either output or input. If the file is output, the result is that the endpoint is modified, instead of a file at the intended location. Modifications to the endpoint file may include appending, overwriting, corrupting, changing permissions, or other modifications. In some variants of this attack the attacker may be able to control the change to a file while in other cases they cannot. The former is especially damaging since the attacker may be able to grant themselves increased privileges or insert false information, but the latter can also be damaging as it can expose sensitive information or corrupt or destroy vital system or application files. Alternatively, the endpoint file may serve as input to the targeted application. This can be used to feed malformed input into the target or to cause the target to process different information, possibly allowing the attacker to control the actions of the target or to cause the target to expose information to the attacker. Moreover, the actions taken on the endpoint file are undertaken with the permissions of the targeted user or application, which may exceed the permissions that the attacker would normally have.
  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Manipulating Input to File System Calls
    An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
nessus via4
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2018-3470.NASL
    description An update for imgbased, redhat-release-virtualization-host, and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Security Fix(es) : * spice: Missing check in demarshal.py:write_validate_array_item() allows for buffer overflow and denial of service (CVE-2018-10873) * glusterfs: Multiple flaws (CVE-2018-10904, CVE-2018-10907, CVE-2018-10923, CVE-2018-10926, CVE-2018-10927, CVE-2018-10928, CVE-2018-10929, CVE-2018-10930, CVE-2018-10911, CVE-2018-10914, CVE-2018-14652, CVE-2018-14653, CVE-2018-14654, CVE-2018-14659, CVE-2018-14660, CVE-2018-14661, CVE-2018-10913) * samba: Insufficient input validation in libsmbclient (CVE-2018-10858) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank Michael Hanselmann (hansmi.ch) for reporting CVE-2018-10904, CVE-2018-10907, CVE-2018-10923, CVE-2018-10926, CVE-2018-10927, CVE-2018-10928, CVE-2018-10929, CVE-2018-10930, CVE-2018-10911, CVE-2018-10914, CVE-2018-14652, CVE-2018-14653, CVE-2018-14654, CVE-2018-14659, CVE-2018-14660, CVE-2018-14661, and CVE-2018-10913. The CVE-2018-10873 issue was discovered by Frediano Ziglio (Red Hat). Bug Fix(es) : * When upgrading Red Hat Virtualization Host (RHVH), imgbased fails to run garbage collection on previous layers, so new logical volumes are removed, and the boot entry points to a logical volume that was removed. If the RHVH upgrade finishes successfully, the hypervisor boots successfully, even if garbage collection fails. (BZ#1632058) * During the upgrade process, when lvremove runs garbage collection, it prompts for user confirmation, causing the upgrade process to fail. Now the process uses 'lvremove --force' when trying to remove logical volumes and does not fail even if garbage collection fails, and as a result, the upgrade process finishes successfully. (BZ#1632585)
    last seen 2019-02-21
    modified 2019-01-02
    plugin id 118790
    published 2018-11-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118790
    title RHEL 7 : Virtualization Manager (RHSA-2018:3470)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2018-2607.NASL
    description Updated glusterfs packages that fix multiple security issues and bugs, and add various enhancements are now available for Red Hat Gluster Storage 3.4 on Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. GlusterFS is a key building block of Red Hat Gluster Storage. It is based on a stackable user-space design and can deliver exceptional performance for diverse workloads. GlusterFS aggregates various storage servers over network interconnections into one large, parallel network file system. Security Fix(es) : * glusterfs: Unsanitized file names in debug/io-stats translator can allow remote attackers to execute arbitrary code (CVE-2018-10904) * glusterfs: Stack-based buffer overflow in server-rpc-fops.c allows remote attackers to execute arbitrary code (CVE-2018-10907) * glusterfs: I/O to arbitrary devices on storage server (CVE-2018-10923) * glusterfs: Device files can be created in arbitrary locations (CVE-2018-10926) * glusterfs: File status information leak and denial of service (CVE-2018-10927) * glusterfs: Improper resolution of symlinks allows for privilege escalation (CVE-2018-10928) * glusterfs: Arbitrary file creation on storage server allows for execution of arbitrary code (CVE-2018-10929) * glusterfs: Files can be renamed outside volume (CVE-2018-10930) * glusterfs: Improper deserialization in dict.c:dict_unserialize() can allow attackers to read arbitrary memory (CVE-2018-10911) * glusterfs: remote denial of service of gluster volumes via posix_get_file_contents function in posix-helpers.c (CVE-2018-10914) * glusterfs: Information Exposure in posix_get_file_contents function in posix-helpers.c (CVE-2018-10913) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank Michael Hanselmann (hansmi.ch) for reporting these issues. Additional Changes : These updated glusterfs packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Gluster Storage 3.4 Release Notes for information on the most significant of these changes : https://access.redhat.com/site/documentation/en-US/red_hat_gluster_sto rage/3.4/ html/3.4_release_notes/ All users of Red Hat Gluster Storage are advised to upgrade to these updated packages, which provide numerous bug fixes and enhancements.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 117317
    published 2018-09-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=117317
    title RHEL 7 : Gluster Storage (RHSA-2018:2607)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-9A4D7EC61E.NASL
    description 3.12.14 GA Security Fix for CVE-2018-10904 Security Fix for CVE-2018-10907 Security Fix for CVE-2018-10911 Security Fix for CVE-2018-10913 Security Fix for CVE-2018-10914 Security Fix for CVE-2018-10923 Security Fix for CVE-2018-10926 Security Fix for CVE-2018-10927 Security Fix for CVE-2018-10928 Security Fix for CVE-2018-10929 Security Fix for CVE-2018-10930 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 2018-10-24
    plugin id 117841
    published 2018-10-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=117841
    title Fedora 27 : glusterfs (2018-9a4d7ec61e)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-4E660226E7.NASL
    description 4.1.4 GA Security Fix for CVE-2018-10904 Security Fix for CVE-2018-10907 Security Fix for CVE-2018-10911 Security Fix for CVE-2018-10913 Security Fix for CVE-2018-10914 Security Fix for CVE-2018-10923 Security Fix for CVE-2018-10926 Security Fix for CVE-2018-10927 Security Fix for CVE-2018-10928 Security Fix for CVE-2018-10929 Security Fix for CVE-2018-10930 ---- missing /run/gluster/metrics, see bz#1624006 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 120410
    published 2019-01-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=120410
    title Fedora 28 : glusterfs (2018-4e660226e7)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-A54270A213.NASL
    description 4.1.5 GA ---- 4.1.4 GA Security Fix for CVE-2018-10904 Security Fix for CVE-2018-10907 Security Fix for CVE-2018-10911 Security Fix for CVE-2018-10913 Security Fix for CVE-2018-10914 Security Fix for CVE-2018-10923 Security Fix for CVE-2018-10926 Security Fix for CVE-2018-10927 Security Fix for CVE-2018-10928 Security Fix for CVE-2018-10929 Security Fix for CVE-2018-10930 ---- missing /run/gluster/metrics, see bz#1624006 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 120672
    published 2019-01-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=120672
    title Fedora 29 : glusterfs (2018-a54270a213)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2018-2608.NASL
    description Updated glusterfs packages that fix multiple security issues, several bugs, and adds various enhancements are now available for Red Hat Gluster Storage 3.4 on Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. GlusterFS is a key building block of Red Hat Gluster Storage. It is based on a stackable user-space design and can deliver exceptional performance for diverse workloads. GlusterFS aggregates various storage servers over network interconnections into one large, parallel network file system. Security Fix(es) : * glusterfs: Unsanitized file names in debug/io-stats translator can allow remote attackers to execute arbitrary code (CVE-2018-10904) * glusterfs: Stack-based buffer overflow in server-rpc-fops.c allows remote attackers to execute arbitrary code (CVE-2018-10907) * glusterfs: I/O to arbitrary devices on storage server (CVE-2018-10923) * glusterfs: Device files can be created in arbitrary locations (CVE-2018-10926) * glusterfs: File status information leak and denial of service (CVE-2018-10927) * glusterfs: Improper resolution of symlinks allows for privilege escalation (CVE-2018-10928) * glusterfs: Arbitrary file creation on storage server allows for execution of arbitrary code (CVE-2018-10929) * glusterfs: Files can be renamed outside volume (CVE-2018-10930) * glusterfs: Improper deserialization in dict.c:dict_unserialize() can allow attackers to read arbitrary memory (CVE-2018-10911) * glusterfs: remote denial of service of gluster volumes via posix_get_file_contents function in posix-helpers.c (CVE-2018-10914) * glusterfs: Information Exposure in posix_get_file_contents function in posix-helpers.c (CVE-2018-10913) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank Michael Hanselmann (hansmi.ch) for reporting these issues. Additional changes : These updated Red Hat Gluster Storage packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Gluster Storage 3.4 Release Notes for information on the most significant of these changes : https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/ 3.4/html/ 3.4_release_notes/ All users of Red Hat Gluster Storage are advised to upgrade to these updated packages, which provide numerous bug fixes and enhancements. Disabled on 2018/11/06. Detection of Gluster Storage Server on RHEL 6 is no longer possible due to changes in Gluster package versioning.
    last seen 2019-02-21
    modified 2018-11-07
    plugin id 117318
    published 2018-09-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=117318
    title RHEL 6 : Gluster Storage (RHSA-2018:2608) (deprecated)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2018-2607.NASL
    description Updated glusterfs packages that fix multiple security issues and bugs, and add various enhancements are now available for Red Hat Gluster Storage 3.4 on Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. GlusterFS is a key building block of Red Hat Gluster Storage. It is based on a stackable user-space design and can deliver exceptional performance for diverse workloads. GlusterFS aggregates various storage servers over network interconnections into one large, parallel network file system. Security Fix(es) : * glusterfs: Unsanitized file names in debug/io-stats translator can allow remote attackers to execute arbitrary code (CVE-2018-10904) * glusterfs: Stack-based buffer overflow in server-rpc-fops.c allows remote attackers to execute arbitrary code (CVE-2018-10907) * glusterfs: I/O to arbitrary devices on storage server (CVE-2018-10923) * glusterfs: Device files can be created in arbitrary locations (CVE-2018-10926) * glusterfs: File status information leak and denial of service (CVE-2018-10927) * glusterfs: Improper resolution of symlinks allows for privilege escalation (CVE-2018-10928) * glusterfs: Arbitrary file creation on storage server allows for execution of arbitrary code (CVE-2018-10929) * glusterfs: Files can be renamed outside volume (CVE-2018-10930) * glusterfs: Improper deserialization in dict.c:dict_unserialize() can allow attackers to read arbitrary memory (CVE-2018-10911) * glusterfs: remote denial of service of gluster volumes via posix_get_file_contents function in posix-helpers.c (CVE-2018-10914) * glusterfs: Information Exposure in posix_get_file_contents function in posix-helpers.c (CVE-2018-10913) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank Michael Hanselmann (hansmi.ch) for reporting these issues. Additional Changes : These updated glusterfs packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Gluster Storage 3.4 Release Notes for information on the most significant of these changes : https://access.redhat.com/site/documentation/en-US/red_hat_gluster_sto rage/3.4/ html/3.4_release_notes/ All users of Red Hat Gluster Storage are advised to upgrade to these updated packages, which provide numerous bug fixes and enhancements.
    last seen 2019-02-21
    modified 2018-11-16
    plugin id 118982
    published 2018-11-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118982
    title CentOS 7 : glusterfs (CESA-2018:2607)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-1510.NASL
    description Multiple security vulnerabilities were discovered in GlusterFS, a clustered file system. Buffer overflows and path traversal issues may lead to information disclosure, denial of service or the execution of arbitrary code. To resolve the security vulnerabilities the following limitations were made in GlusterFS : - open,read,write on special files like char and block are no longer permitted - io-stat xlator can dump stat info only to /run/gluster directory For Debian 8 'Jessie', these problems have been fixed in version 3.5.2-2+deb8u4. We recommend that you upgrade your glusterfs 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 2018-10-24
    plugin id 117618
    published 2018-09-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=117618
    title Debian DLA-1510-1 : glusterfs security update
redhat via4
advisories
  • rhsa
    id RHSA-2018:2607
  • rhsa
    id RHSA-2018:2608
  • rhsa
    id RHSA-2018:3470
refmap via4
confirm https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10928
gentoo GLSA-201904-06
mlist [debian-lts-announce] 20180920 [SECURITY] [DLA 1510-1] glusterfs security update
Last major update 04-09-2018 - 11:29
Published 04-09-2018 - 11:29
Last modified 02-04-2019 - 03:29
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