Medium severity · published Sep 21, 2017
CVE-2017-7549
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…
6.4
CVSS
0.4%
EPSS
No
On KEV
Description
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 vector
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IN
Instack-undercloud · Openstack
7.2.0; 6.1.0; 5.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-7549
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-7549
Third Party Advisory
http://www.securityfocus.com/bid/100407
access.redhat.com
https://access.redhat.com/errata/RHSA-2017:2557
access.redhat.com
https://access.redhat.com/errata/RHSA-2017:2649
access.redhat.com
https://access.redhat.com/errata/RHSA-2017:2687
access.redhat.com
https://access.redhat.com/errata/RHSA-2017:2693
access.redhat.com
https://access.redhat.com/errata/RHSA-2017:2726