CVE-2017-7549: instack-undercloud vulnerable to symlink attack on tmp files
(updated )
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.
References
- access.redhat.com/errata/RHSA-2017:2557
- access.redhat.com/errata/RHSA-2017:2649
- access.redhat.com/errata/RHSA-2017:2687
- access.redhat.com/errata/RHSA-2017:2693
- access.redhat.com/errata/RHSA-2017:2726
- access.redhat.com/security/cve/CVE-2017-7549
- bugzilla.redhat.com/show_bug.cgi?id=1477403
- github.com/advisories/GHSA-53wm-97p6-582f
- github.com/pypa/advisory-database/tree/main/vulns/instack/PYSEC-2017-152.yaml
- nvd.nist.gov/vuln/detail/CVE-2017-7549
- web.archive.org/web/20170907040549/http://www.securityfocus.com/bid/100407
Code Behaviors & Features
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