Vulnerability Name:

CVE-2017-6138 (CCN-136672)

Assigned:2017-12-21
Published:2017-12-21
Updated:2018-01-05
Summary:In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM and WebSafe software version 13.0.0 and 12.1.0 - 12.1.2, malicious requests made to virtual servers with an HTTP profile can cause the TMM to restart. The issue is exposed with BIG-IP APM profiles, regardless of settings. The issue is also exposed with the non-default "normalize URI" configuration options used in iRules and/or BIG-IP LTM policies.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-6138

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040051

Source: XF
Type: UNKNOWN
f5-cve20176138-dos(136672)

Source: CCN
Type: F5 Security Advisory: K34514540
TMM vulnerability CVE-2017-6138

Source: CONFIRM
Type: Issue Tracking, Mitigation, Vendor Advisory
https://support.f5.com/csp/article/K34514540

Vulnerable Configuration:Configuration 1:
  • cpe:/a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_local_traffic_manager:13.0.0:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_application_acceleration_manager:13.0.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_advanced_firewall_manager:13.0.0:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/a:f5:big-ip_analytics:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_analytics:13.0.0:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_access_policy_manager:13.0.0:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_application_security_manager:13.0.0:*:*:*:*:*:*:*

    • Configuration 7:
  • cpe:/a:f5:big-ip_dns:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_dns:13.0.0:*:*:*:*:*:*:*

    • Configuration 8:
  • cpe:/a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_global_traffic_manager:13.0.0:*:*:*:*:*:*:*

    • Configuration 9:
  • cpe:/a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_link_controller:13.0.0:*:*:*:*:*:*:*

    • Configuration 10:
  • cpe:/a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_policy_enforcement_manager:13.0.0:*:*:*:*:*:*:*

    • Configuration 11:
  • cpe:/a:f5:big-ip_websafe:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.2)
  • OR cpe:/a:f5:big-ip_websafe:13.0.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:f5:big-ip_local_traffic_manager:13.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_application_acceleration_manager:13.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_afm:13.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_access_policy_manager:13.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_asm:13.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_dns:13.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_link_controller:13.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_pem:13.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_websafe:13.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_local_traffic_manager:12.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_access_policy_manager:12.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_link_controller:12.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_websafe:12.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_analytics:12.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_dns:12.1.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    f5 big-ip local traffic manager *
    f5 big-ip local traffic manager 13.0.0
    f5 big-ip application acceleration manager *
    f5 big-ip application acceleration manager 13.0.0
    f5 big-ip advanced firewall manager *
    f5 big-ip advanced firewall manager 13.0.0
    f5 big-ip analytics *
    f5 big-ip analytics 13.0.0
    f5 big-ip access policy manager *
    f5 big-ip access policy manager 13.0.0
    f5 big-ip application security manager *
    f5 big-ip application security manager 13.0.0
    f5 big-ip dns *
    f5 big-ip dns 13.0.0
    f5 big-ip global traffic manager *
    f5 big-ip global traffic manager 13.0.0
    f5 big-ip link controller *
    f5 big-ip link controller 13.0.0
    f5 big-ip policy enforcement manager *
    f5 big-ip policy enforcement manager 13.0.0
    f5 big-ip websafe *
    f5 big-ip websafe 13.0.0
    f5 big-ip local traffic manager 13.0.0
    f5 big-ip aam 13.0.0
    f5 big-ip afm 13.0.0
    f5 big-ip access policy manager 13.0.0
    f5 big-ip asm 13.0.0
    f5 big-ip dns 13.0.0
    f5 big-ip link controller 13.0.0
    f5 big-ip pem 13.0.0
    f5 big-ip websafe 13.0.0
    f5 big-ip local traffic manager 12.1.2
    f5 big-ip access policy manager 12.1.2
    f5 big-ip link controller 12.1.2
    f5 big-ip websafe 12.1.2
    f5 big-ip analytics 12.1.2
    f5 big-ip dns 12.1.2