Vulnerability Name:

CVE-2017-7549

Assigned:2017-04-05
Published:2017-08-01
Updated:2018-01-04
Summary:A flaw was found in instack-undercloud 7.2.0 as packaged in Red Hat OpenStack Platform Pike, 6.1.0 as packaged in Red Hat OpenStack Platform Oacta, 5.3.0 as packaged in Red Hat OpenStack Newton, where pre-install and security policy scripts used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files.
CVSS v3 Severity:6.4 Medium (CVSS v3 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N)
5.6 Medium (Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): Low
Availibility (A): None
4.0 Medium (CCN CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
3.5 Low (CCN Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:3.3 Low (CVSS v2 Vector: AV:L/AC:M/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-59
References:Source: BID
Type: VENDOR_ADVISORY
100407

Source: REDHAT
Type: UNKNOWN
RHSA-2017:2557

Source: REDHAT
Type: UNKNOWN
RHSA-2017:2649

Source: REDHAT
Type: UNKNOWN
RHSA-2017:2687

Source: REDHAT
Type: UNKNOWN
RHSA-2017:2693

Source: REDHAT
Type: UNKNOWN
RHSA-2017:2726

Source: CONFIRM
Type: VENDOR_ADVISORY
https://bugzilla.redhat.com/show_bug.cgi?id=1477403

Source: XF
Type: UNKNOWN
redhat-openstack-cve20177549-symlink(132445)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:openstack:instack-undercloud:7.2.0:*:*:*:*:*:*:*
  • AND
  • cpe:/a:redhat:openstack:12.0:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/a:openstack:instack-undercloud:6.1.0:*:*:*:*:*:*:*
  • AND
  • cpe:/a:redhat:openstack:11.0:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/a:openstack:instack-undercloud:5.3.0:*:*:*:*:*:*:*
  • AND
  • cpe:/a:redhat:openstack:10.0:*:*:*:*:*:*:*

  • Denotes that component is vulnerable
    BACK
    openstack instack-undercloud 7.2.0
    redhat openstack 12.0
    openstack instack-undercloud 6.1.0
    redhat openstack 11.0
    openstack instack-undercloud 5.3.0
    redhat openstack 10.0