ID CVE-2010-2526
Summary The cluster logical volume manager daemon (clvmd) in lvm2-cluster in LVM2 before 2.02.72, as used in Red Hat Global File System (GFS) and other products, does not verify client credentials upon a socket connection, which allows local users to cause a denial of service (daemon exit or logical-volume change) or possibly have unspecified other impact via crafted control commands.
References
Vulnerable Configurations
  • Heinz Mauelshagen LVM2 2.02.71
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.71
  • Heinz Mauelshagen LVM2 2.02.70
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.70
  • Heinz Mauelshagen LVM2 2.02.69
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.69
  • Heinz Mauelshagen LVM2 2.02.68
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.68
  • Heinz Mauelshagen LVM2 2.02.67
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.67
  • Heinz Mauelshagen LVM2 2.02.66
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.66
  • Heinz Mauelshagen LVM2 2.02.65
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.65
  • Heinz Mauelshagen LVM2 2.02.64
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.64
  • Heinz Mauelshagen LVM2 2.02.63
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.63
  • Heinz Mauelshagen LVM2 2.02.62
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.62
  • Heinz Mauelshagen LVM2 2.02.61
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.61
  • Heinz Mauelshagen LVM2 2.02.60
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.60
  • Heinz Mauelshagen LVM2 2.02.59
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.59
  • Heinz Mauelshagen LVM2 2.02.58
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.58
  • Heinz Mauelshagen LVM2 2.02.57
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.57
  • Heinz Mauelshagen LVM2 2.02.56
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.56
  • Heinz Mauelshagen LVM2 2.02.55
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.55
  • Heinz Mauelshagen LVM2 2.02.54
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.54
  • Heinz Mauelshagen LVM2 2.02.53
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.53
  • Heinz Mauelshagen LVM2 2.02.52
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.52
  • Heinz Mauelshagen LVM2 2.02.51
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.51
  • Heinz Mauelshagen LVM2 2.02.50
    cpe:2.3:a:heinz_mauelshagen:lvm2:2.02.50
  • Red Hat cluster_suite
    cpe:2.3:a:redhat:cluster_suite
  • cpe:2.3:o:redhat:enterprise_linux:5:-:advanced_platform
    cpe:2.3:o:redhat:enterprise_linux:5:-:advanced_platform
  • Red Hat Enterprise Linux 3
    cpe:2.3:o:redhat:enterprise_linux:3
  • Red Hat Enterprise Linux 3.0
    cpe:2.3:o:redhat:enterprise_linux:3.0
  • Red Hat Enterprise Linux 4
    cpe:2.3:o:redhat:enterprise_linux:4
  • Red Hat Enterprise Linux 4.0
    cpe:2.3:o:redhat:enterprise_linux:4.0
CVSS
Base: 4.6 (as of 05-08-2010 - 09:58)
Impact:
Exploitability:
CWE CWE-287
CAPEC
  • Authentication Abuse
    An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker. This attack may exploit assumptions made by the target's authentication procedures, such as assumptions regarding trust relationships or assumptions regarding the generation of secret values. This attack differs from Authentication Bypass attacks in that Authentication Abuse allows the attacker to be certified as a valid user through illegitimate means, while Authentication Bypass allows the user to access protected material without ever being certified as an authenticated user. This attack does not rely on prior sessions established by successfully authenticating users, as relied upon for the "Exploitation of Session Variables, Resource IDs and other Trusted Credentials" attack patterns.
  • 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.
  • Utilizing REST's Trust in the System Resource to Register Man in the Middle
    This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to place man in the middle once SSL is terminated. Rest applications premise is that they leverage existing infrastructure to deliver web services functionality. An example of this is a Rest application that uses HTTP Get methods and receives a HTTP response with an XML document. These Rest style web services are deployed on existing infrastructure such as Apache and IIS web servers with no SOAP stack required. Unfortunately from a security standpoint, there frequently is no interoperable identity security mechanism deployed, so Rest developers often fall back to SSL to deliver security. In large data centers, SSL is typically terminated at the edge of the network - at the firewall, load balancer, or router. Once the SSL is terminated the HTTP request is in the clear (unless developers have hashed or encrypted the values, but this is rare). The attacker can utilize a sniffer such as Wireshark to snapshot the credentials, such as username and password that are passed in the clear once SSL is terminated. Once the attacker gathers these credentials, they can submit requests to the web service provider just as authorized user do. There is not typically an authentication on the client side, beyond what is passed in the request itself so once this is compromised, then this is generally sufficient to compromise the service's authentication scheme.
  • Man in the Middle Attack
    This type of attack targets the communication between two components (typically client and server). The attacker places himself in the communication channel between the two components. Whenever one component attempts to communicate with the other (data flow, authentication challenges, etc.), the data first goes to the attacker, who has the opportunity to observe or alter it, and it is then passed on to the other component as if it was never intercepted. This interposition is transparent leaving the two compromised components unaware of the potential corruption or leakage of their communications. The potential for Man-in-the-Middle attacks yields an implicit lack of trust in communication or identify between two components.
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
nessus via4
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2010-0567.NASL
    description An updated lvm2-cluster package that fixes one security issue is now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The lvm2-cluster package contains support for Logical Volume Management (LVM) in a clustered environment. It was discovered that the cluster logical volume manager daemon (clvmd) did not verify the credentials of clients connecting to its control UNIX abstract socket, allowing local, unprivileged users to send control commands that were intended to only be available to the privileged root user. This could allow a local, unprivileged user to cause clvmd to exit, or request clvmd to activate, deactivate, or reload any logical volume on the local system or another system in the cluster. (CVE-2010-2526) Note: This update changes clvmd to use a pathname-based socket rather than an abstract socket. As such, the lvm2 update RHBA-2010:0569, which changes LVM to also use this pathname-based socket, must also be installed for LVM to be able to communicate with the updated clvmd. All lvm2-cluster users should upgrade to this updated package, which contains a backported patch to correct this issue. After installing the updated package, clvmd must be restarted for the update to take effect.
    last seen 2019-02-21
    modified 2018-12-20
    plugin id 47903
    published 2010-07-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=47903
    title CentOS 5 : lvm2-cluster (CESA-2010:0567)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-1001-1.NASL
    description The cluster logical volume manager daemon (clvmd) in LVM2 did not correctly validate credentials. A local user could use this flaw to manipulate logical volumes without root privileges and cause a denial of service in the cluster. 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 49791
    published 2010-10-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=49791
    title Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 / 10.04 LTS : lvm2 vulnerability (USN-1001-1)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2010-13708.NASL
    description This update addresses a security problem when using the clustered LVM daemon clvmd from the package lvm2-cluster on systems where you have non-root users. The lvm2 package on its own is not vulnerable to this problem but if you are using lvm2-cluster you must update both together. Further details are given in the Red Hat Bugzilla: https://bugzilla.redhat.com/CVE-2010-2526 After updating the packages, make sure that clvmd restarted itself. This update also includes several other important bug fixes and enhancements - see the detailed changelog. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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 2018-11-20
    plugin id 49194
    published 2010-09-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=49194
    title Fedora 13 : lvm2-2.02.73-2.fc13 / udisks-1.0.1-4.fc13 (2010-13708)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2010-0567.NASL
    description An updated lvm2-cluster package that fixes one security issue is now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The lvm2-cluster package contains support for Logical Volume Management (LVM) in a clustered environment. It was discovered that the cluster logical volume manager daemon (clvmd) did not verify the credentials of clients connecting to its control UNIX abstract socket, allowing local, unprivileged users to send control commands that were intended to only be available to the privileged root user. This could allow a local, unprivileged user to cause clvmd to exit, or request clvmd to activate, deactivate, or reload any logical volume on the local system or another system in the cluster. (CVE-2010-2526) Note: This update changes clvmd to use a pathname-based socket rather than an abstract socket. As such, the lvm2 update RHBA-2010:0569, which changes LVM to also use this pathname-based socket, must also be installed for LVM to be able to communicate with the updated clvmd. All lvm2-cluster users should upgrade to this updated package, which contains a backported patch to correct this issue. After installing the updated package, clvmd must be restarted for the update to take effect.
    last seen 2019-02-21
    modified 2018-08-13
    plugin id 63941
    published 2013-01-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=63941
    title RHEL 5 : lvm2-cluster (RHSA-2010:0567)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2010-13239.NASL
    description This update fixes some minor problems as listed in the changelog. To improve performance, Logical Volumes will be aligned at 1MB boundaries by default now on any newly-created Physical Volumes that don't report a preferred alignment to the O/S. This update addresses a security problem when using the clustered LVM daemon clvmd from the package lvm2-cluster on systems where you have non-root users. The lvm2 package on its own is not vulnerable to this problem but if you are using lvm2-cluster you must update both together. Further details are given in the Red Hat Bugzilla: https://bugzilla.redhat.com/CVE-2010-2526 After updating the packages, make sure that clvmd restarted itself. This update also includes several other important bug fixes - see the detailed changelog. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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 2018-11-28
    plugin id 49074
    published 2010-09-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=49074
    title Fedora 14 : lvm2-2.02.73-1.fc14 (2010-13239)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2010-0567.NASL
    description From Red Hat Security Advisory 2010:0567 : An updated lvm2-cluster package that fixes one security issue is now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The lvm2-cluster package contains support for Logical Volume Management (LVM) in a clustered environment. It was discovered that the cluster logical volume manager daemon (clvmd) did not verify the credentials of clients connecting to its control UNIX abstract socket, allowing local, unprivileged users to send control commands that were intended to only be available to the privileged root user. This could allow a local, unprivileged user to cause clvmd to exit, or request clvmd to activate, deactivate, or reload any logical volume on the local system or another system in the cluster. (CVE-2010-2526) Note: This update changes clvmd to use a pathname-based socket rather than an abstract socket. As such, the lvm2 update RHBA-2010:0569, which changes LVM to also use this pathname-based socket, must also be installed for LVM to be able to communicate with the updated clvmd. All lvm2-cluster users should upgrade to this updated package, which contains a backported patch to correct this issue. After installing the updated package, clvmd must be restarted for the update to take effect.
    last seen 2019-02-21
    modified 2018-12-20
    plugin id 68073
    published 2013-07-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=68073
    title Oracle Linux 5 : lvm2-cluster (ELSA-2010-0567)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_LVM2-100730.NASL
    description clvmd, when running, allowed unprivileged local users to issue arbitrary lvm commands (CVE-2010-2526) via incorrect permissions.
    last seen 2019-02-21
    modified 2013-10-25
    plugin id 50948
    published 2010-12-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=50948
    title SuSE 11 Security Update : lvm2, lvm2-clvm, lvm2-clvm-debuginfo, lvm2-clvm-debugsource, etc (SAT Patch Number 2849)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-2095.NASL
    description Alasdair Kergon discovered that the cluster logical volume manager daemon (clvmd) in LVM2, The Linux Logical Volume Manager, does not verify client credentials upon a socket connection, which allows local users to cause a denial of service.
    last seen 2019-02-21
    modified 2018-11-28
    plugin id 48895
    published 2010-08-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=48895
    title Debian DSA-2095-1 : lvm2 - insecure communication protocol
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_LVM2-CLVM2-100820.NASL
    description clvmd, when running, allowed unprivileged local users to issue arbitrary lvm commands (CVE-2010-2526) via incorrect permissions. This has been fixed.
    last seen 2019-02-21
    modified 2013-10-25
    plugin id 51625
    published 2011-01-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=51625
    title SuSE 11.1 Security Update : LVM2 (SAT Patch Number 2982)
  • NASL family Mandriva Local Security Checks
    NASL id MANDRIVA_MDVSA-2010-171.NASL
    description A vulnerability has been found and corrected in lvm2 : The cluster logical volume manager daemon (clvmd) in lvm2-cluster in LVM2 before 2.02.72, as used in Red Hat Global File System (GFS) and other products, does not verify client credentials upon a socket connection, which allows local users to cause a denial of service (daemon exit or logical-volume change) or possibly have unspecified other impact via crafted control commands (CVE-2010-2526). The updated packages have been patched to correct this issue.
    last seen 2019-02-21
    modified 2019-01-02
    plugin id 49117
    published 2010-09-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=49117
    title Mandriva Linux Security Advisory : lvm2 (MDVSA-2010:171)
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201412-09.NASL
    description The remote host is affected by the vulnerability described in GLSA-201412-09 (Multiple packages, Multiple vulnerabilities fixed in 2011) Vulnerabilities have been discovered in the packages listed below. Please review the CVE identifiers in the Reference section for details. FMOD Studio PEAR Mail LVM2 GnuCash xine-lib Last.fm Scrobbler WebKitGTK+ shadow tool suite PEAR unixODBC Resource Agents mrouted rsync XML Security Library xrdb Vino OProfile syslog-ng sFlow Toolkit GNOME Display Manager libsoup CA Certificates Gitolite QtCreator Racer Impact : A context-dependent attacker may be able to gain escalated privileges, execute arbitrary code, cause Denial of Service, obtain sensitive information, or otherwise bypass security restrictions. Workaround : There are no known workarounds at this time.
    last seen 2019-02-21
    modified 2017-04-15
    plugin id 79962
    published 2014-12-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=79962
    title GLSA-201412-09 : Multiple packages, Multiple vulnerabilities fixed in 2011
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20100728_LVM2_CLUSTER_LVM2_FOR_SL5.NASL
    description It was discovered that the cluster logical volume manager daemon (clvmd) did not verify the credentials of clients connecting to its control UNIX abstract socket, allowing local, unprivileged users to send control commands that were intended to only be available to the privileged root user. This could allow a local, unprivileged user to cause clvmd to exit, or request clvmd to activate, deactivate, or reload any logical volume on the local system or another system in the cluster. (CVE-2010-2526) Note: This update changes clvmd to use a pathname-based socket rather than an abstract socket. As such, the lvm2 update 2010:0569, which changes LVM to also use this pathname-based socket, must also be installed for LVM to be able to communicate with the updated clvmd. All lvm2-cluster users should upgrade to this updated package, which contains a backported patch to correct this issue. After installing the updated package, clvmd must be restarted for the update to take effect. 5. Bugs fixed CVE-2010-2526 lvm2-cluster: insecurity when communicating between lvm2 and clvmd 6. Package List :
    last seen 2019-02-21
    modified 2019-01-02
    plugin id 60824
    published 2012-08-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=60824
    title Scientific Linux Security Update : lvm2-cluster,lvm2 for SL5
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2010-12250.NASL
    description This update addresses a security problem when using the clustered LVM daemon clvmd from the package lvm2-cluster on systems where you have non-root users. The lvm2 package on its own is not vulnerable to this problem but if you are using lvm2-cluster you must update both together. Further details are given in the Red Hat Bugzilla: https://bugzilla.redhat.com/CVE-2010-2526 After updating the packages, make sure that clvmd restarted itself. This update also includes several other important bug fixes - see the detailed changelog. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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 2018-11-28
    plugin id 49677
    published 2010-09-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=49677
    title Fedora 12 : lvm2-2.02.72-4.fc12 (2010-12250)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_1_LVM2-100812.NASL
    description clvmd allowed unprivileged users to issue arbitrary lvm commands (CVE-2010-2526).
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 49256
    published 2010-09-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=49256
    title openSUSE Security Update : lvm2 (openSUSE-SU-2010:0615-1)
redhat via4
advisories
  • bugzilla
    id 614248
    title CVE-2010-2526 lvm2-cluster: insecurity when communicating between lvm2 and clvmd
    oval
    AND
    • comment Red Hat Enterprise Linux 5 is installed
      oval oval:com.redhat.rhsa:tst:20070055001
    • comment lvm2-cluster is earlier than 0:2.02.56-7.el5_5.4
      oval oval:com.redhat.rhsa:tst:20100567002
    • comment lvm2-cluster is signed with Red Hat redhatrelease key
      oval oval:com.redhat.rhsa:tst:20100567003
    rhsa
    id RHSA-2010:0567
    released 2010-07-28
    severity Moderate
    title RHSA-2010:0567: lvm2-cluster security update (Moderate)
  • rhsa
    id RHSA-2010:0568
rpms lvm2-cluster-0:2.02.56-7.el5_5.4
refmap via4
confirm https://bugzilla.redhat.com/show_bug.cgi?id=614248
mlist [linux-lvm] 20100728 lvm2-cluster (clvmd) security fix (Moderate)
osvdb 66753
sectrack 1024258
secunia 40759
suse SUSE-SR:2010:017
ubuntu USN-1001-1
vupen ADV-2010-1944
xf lvm2-socket-privilege-escalation(60809)
Last major update 10-12-2010 - 01:43
Published 05-08-2010 - 09:22
Last modified 16-08-2017 - 21:32
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