Migration Toolkit For Virtualization
Monthly
Jinja2 template injection in Ansible Operator Plugins (CWE-1336) lets an authenticated Kubernetes user who can create or modify a custom resource reconciled by an affected Ansible-based operator execute embedded Jinja2 expressions inside the operator pod, achieving remote code execution and escalating to the operator's service account. Because these operators typically hold cluster-wide RBAC, successful exploitation crosses a privilege boundary (CVSS 3.1 base 8.5, AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H), affecting components of Red Hat Ansible Automation Platform 2, Red Hat Advanced Cluster Management for Kubernetes 2, the Migration Toolkit for Applications/Containers/Virtualization, OpenShift Service Mesh 3 and related Red Hat OpenShift and OpenStack streams. No public exploit code and no confirmed active exploitation (CISA KEV) were identified at time of analysis; the high attack complexity reflects the prerequisite that the targeted operator must pass attacker-controllable CR spec values into Jinja2 templating without sanitization. This is a genuinely high-priority flaw rather than a CVSS-inflated one, but with an important authentication caveat: purely anonymous or read-only users cannot trigger it.
Symlink-following file overwrite on the Ansible control node is possible in ansible-core when a user runs `ansible-galaxy collection install` against a crafted collection tarball, because the archive extractor validates member paths with lexical normalization (os.path.abspath) instead of resolving symlinks (os.path.realpath) and performs no containment check on symlink-typed directory members before creating them, letting chained symlink entries redirect a subsequent file member outside the destination directory. The flaw (CWE-59, CVSS 8.8, vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) is a bypass of the fix for CVE-2020-10691 and requires the victim to actively install the malicious collection, so an attacker can write arbitrary files with the privileges of the ansible-galaxy user and potentially achieve code execution on the control node. No public exploit has been identified at time of analysis and the CVE is not listed in CISA KEV; affected deployments include ansible-core 2.x as shipped in Red Hat Ansible Automation Platform 2 and numerous other Red Hat products, and no patched version is identified in the supplied intelligence, which currently cites only the Red Hat CVE page and Bugzilla 2531646.
Denial of service against HTTP/2 server implementations allows remote unauthenticated attackers to exhaust server resources by rapidly opening and immediately canceling (RST_STREAM) large numbers of streams over a single connection, a technique dubbed the 'Rapid Reset' attack. The flaw is confirmed actively exploited (CISA KEV) following large-scale weaponization observed August through October 2023, with publicly available exploit code and an EPSS score of 94.45% placing it in the 100th percentile for likelihood of exploitation. Virtually every major HTTP/2 stack - including nghttp2, Netty, Envoy, and Eclipse Jetty - is affected.
Jinja2 template injection in Ansible Operator Plugins (CWE-1336) lets an authenticated Kubernetes user who can create or modify a custom resource reconciled by an affected Ansible-based operator execute embedded Jinja2 expressions inside the operator pod, achieving remote code execution and escalating to the operator's service account. Because these operators typically hold cluster-wide RBAC, successful exploitation crosses a privilege boundary (CVSS 3.1 base 8.5, AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H), affecting components of Red Hat Ansible Automation Platform 2, Red Hat Advanced Cluster Management for Kubernetes 2, the Migration Toolkit for Applications/Containers/Virtualization, OpenShift Service Mesh 3 and related Red Hat OpenShift and OpenStack streams. No public exploit code and no confirmed active exploitation (CISA KEV) were identified at time of analysis; the high attack complexity reflects the prerequisite that the targeted operator must pass attacker-controllable CR spec values into Jinja2 templating without sanitization. This is a genuinely high-priority flaw rather than a CVSS-inflated one, but with an important authentication caveat: purely anonymous or read-only users cannot trigger it.
Symlink-following file overwrite on the Ansible control node is possible in ansible-core when a user runs `ansible-galaxy collection install` against a crafted collection tarball, because the archive extractor validates member paths with lexical normalization (os.path.abspath) instead of resolving symlinks (os.path.realpath) and performs no containment check on symlink-typed directory members before creating them, letting chained symlink entries redirect a subsequent file member outside the destination directory. The flaw (CWE-59, CVSS 8.8, vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) is a bypass of the fix for CVE-2020-10691 and requires the victim to actively install the malicious collection, so an attacker can write arbitrary files with the privileges of the ansible-galaxy user and potentially achieve code execution on the control node. No public exploit has been identified at time of analysis and the CVE is not listed in CISA KEV; affected deployments include ansible-core 2.x as shipped in Red Hat Ansible Automation Platform 2 and numerous other Red Hat products, and no patched version is identified in the supplied intelligence, which currently cites only the Red Hat CVE page and Bugzilla 2531646.
Denial of service against HTTP/2 server implementations allows remote unauthenticated attackers to exhaust server resources by rapidly opening and immediately canceling (RST_STREAM) large numbers of streams over a single connection, a technique dubbed the 'Rapid Reset' attack. The flaw is confirmed actively exploited (CISA KEV) following large-scale weaponization observed August through October 2023, with publicly available exploit code and an EPSS score of 94.45% placing it in the 100th percentile for likelihood of exploitation. Virtually every major HTTP/2 stack - including nghttp2, Netty, Envoy, and Eclipse Jetty - is affected.