Vulnerability Name:

CVE-2011-2503 (CCN-68783)

Assigned:2011-07-25
Published:2011-07-25
Updated:2012-07-27
Summary:The insert_module function in runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in SystemTap before 1.6 does not properly validate a module when loading it, which allows local users to gain privileges via a race condition between the signature validation and the module initialization.
CVSS v3 Severity:4.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:3.7 Low (CVSS v2 Vector: AV:L/AC:H/Au:N/C:P/I:P/A:P)
2.7 Low (Temporal CVSS v2 Vector: AV:L/AC:H/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
4.3 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:P/A:P)
3.2 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.0 Medium (REDHAT CVSS v2 Vector: AV:L/AC:H/Au:S/C:C/I:C/A:C)
4.5 Medium (REDHAT Temporal CVSS v2 Vector: AV:L/AC:H/Au:S/C:C/I:C/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2011-2503

Source: CCN
Type: RHSA-2011-1088
Moderate: systemtap security update

Source: CCN
Type: RHSA-2011-1089
Moderate: systemtap security update

Source: CCN
Type: SA45377
SystemTap "staprun" Privilege Escalation Security Issues

Source: SECUNIA
Type: Vendor Advisory
45377

Source: SECUNIA
Type: Vendor Advisory
46920

Source: CONFIRM
Type: UNKNOWN
http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git;a=blob;f=NEWS;hb=304d73b1fea24af791f2a129fb141c5009eae6a8

Source: CONFIRM
Type: Exploit, Patch
http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git;a=commitdiff;h=ed51cfa24ca27746ab09b59280b94117dd58cba3

Source: CCN
Type: SystemTap Web page
SystemTap

Source: DEBIAN
Type: UNKNOWN
DSA-2348

Source: DEBIAN
Type: DSA-2348
systemtap -- several vulnerabilities

Source: CCN
Type: OSVDB ID: 74148
SystemTap staprun Race Condition Module Loading Local Privilege Escalation

Source: CCN
Type: BID-48886
SystemTap Multiple Local Privilege Escalation Vulnerabilities

Source: CCN
Type: Red Hat Bugzilla Bug 716489
(CVE-2011-2503) CVE-2011-2503 systemtap: signed module loading race condition

Source: MISC
Type: UNKNOWN
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2503

Source: XF
Type: UNKNOWN
systemtap-staprun-privilege-escalation(68783)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:systemtap:systemtap:0.2.2:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.3:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.4:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5.3:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5.4:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5.5:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5.7:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5.8:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5.9:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5.10:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5.12:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5.13:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.5.14:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.6:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.6.2:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.7:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.7.2:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.8:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.9:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.9.5:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.9.7:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.9.8:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:0.9.9:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:1.0:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:1.1:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:1.2:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:1.3:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:1.4:*:*:*:*:*:*:*
  • OR cpe:/a:systemtap:systemtap:*:*:*:*:*:*:*:* (Version <= 1.5)

    • Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:6:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:6::server:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:5:*:*:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:5::client:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:5::server:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.mitre.oval:def:15202
    P
    		DSA-2348-1 systemtap -- several
    2014-06-23
    oval:org.mitre.oval:def:23376
    P
    		ELSA-2011:1088: systemtap security update (Moderate)
    2014-05-26
    oval:org.mitre.oval:def:23350
    P
    		ELSA-2011:1089: systemtap security update (Moderate)
    2014-05-26
    oval:org.mitre.oval:def:21608
    P
    		RHSA-2011:1088: systemtap security update (Moderate)
    2014-02-24
    oval:org.mitre.oval:def:22019
    P
    		RHSA-2011:1089: systemtap security update (Moderate)
    2014-02-24
    oval:com.ubuntu.precise:def:20112503000
    V
    		CVE-2011-2503 on Ubuntu 12.04 LTS (precise) - medium.
    2012-07-26
    oval:com.redhat.rhsa:def:20111088
    P
    		RHSA-2011:1088: systemtap security update (Moderate)
    2011-07-25
    oval:com.redhat.rhsa:def:20111089
    P
    		RHSA-2011:1089: systemtap security update (Moderate)
    2011-07-25
    BACK
    systemtap systemtap 0.2.2
    systemtap systemtap 0.3
    systemtap systemtap 0.4
    systemtap systemtap 0.5
    systemtap systemtap 0.5.3
    systemtap systemtap 0.5.4
    systemtap systemtap 0.5.5
    systemtap systemtap 0.5.7
    systemtap systemtap 0.5.8
    systemtap systemtap 0.5.9
    systemtap systemtap 0.5.10
    systemtap systemtap 0.5.12
    systemtap systemtap 0.5.13
    systemtap systemtap 0.5.14
    systemtap systemtap 0.6
    systemtap systemtap 0.6.2
    systemtap systemtap 0.7
    systemtap systemtap 0.7.2
    systemtap systemtap 0.8
    systemtap systemtap 0.9
    systemtap systemtap 0.9.5
    systemtap systemtap 0.9.7
    systemtap systemtap 0.9.8
    systemtap systemtap 0.9.9
    systemtap systemtap 1.0
    systemtap systemtap 1.1
    systemtap systemtap 1.2
    systemtap systemtap 1.3
    systemtap systemtap 1.4
    systemtap systemtap *