CVE-2020-8933 – Priviged Escalation in Google Cloud Platform's Guest-OSLogin
https://notcve.org/view.php?id=CVE-2020-8933
A vulnerability in Google Cloud Platform's guest-oslogin versions between 20190304 and 20200507 allows a user that is only granted the role "roles/compute.osLogin" to escalate privileges to root. Using the membership to the "lxd" group, an attacker can attach host devices and filesystems. Within an lxc container, it is possible to attach the host OS filesystem and modify /etc/sudoers to then gain administrative privileges. All images created after 2020-May-07 (20200507) are fixed, and if you cannot update, we recommend you edit /etc/group/security.conf and remove the "lxd" user from the OS Login entry. Una vulnerabilidad en las versiones entre 20190304 y 20200507 de guest-oslogin de Google Cloud Platform, permite a un usuario al que solo se le otorgó el rol "roles/compute.osLogin" para escalar privilegios a root. • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00037.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00047.html https://cloud.google.com/support/bulletins/#gcp-2020-008 https://github.com/GoogleCloudPlatform/guest-oslogin/pull/29 https://gitlab.com/gitlab-com/gl-security/gl-redteam/red-team-tech-notes/-/tree/master/oslogin-privesc-june-2020 • CWE-276: Incorrect Default Permissions •
CVE-2020-8903 – Priviged Escalation in Google Cloud Platform's Guest-OSLogin
https://notcve.org/view.php?id=CVE-2020-8903
A vulnerability in Google Cloud Platform's guest-oslogin versions between 20190304 and 20200507 allows a user that is only granted the role "roles/compute.osLogin" to escalate privileges to root. Using their membership to the "adm" group, users with this role are able to read the DHCP XID from the systemd journal. Using the DHCP XID, it is then possible to set the IP address and hostname of the instance to any value, which is then stored in /etc/hosts. An attacker can then point metadata.google.internal to an arbitrary IP address and impersonate the GCE metadata server which make it is possible to instruct the OS Login PAM module to grant administrative privileges. All images created after 2020-May-07 (20200507) are fixed, and if you cannot update, we recommend you edit /etc/group/security.conf and remove the "adm" user from the OS Login entry. • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00037.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00047.html https://cloud.google.com/support/bulletins/#gcp-2020-008 https://github.com/GoogleCloudPlatform/guest-oslogin/pull/29 https://gitlab.com/gitlab-com/gl-security/gl-redteam/red-team-tech-notes/-/tree/master/oslogin-privesc-june-2020 • CWE-276: Incorrect Default Permissions •
CVE-2020-8907 – Priviged Escalation in Google Cloud Platform's Guest-OSLogin
https://notcve.org/view.php?id=CVE-2020-8907
A vulnerability in Google Cloud Platform's guest-oslogin versions between 20190304 and 20200507 allows a user that is only granted the role "roles/compute.osLogin" to escalate privileges to root. Using their membership to the "docker" group, an attacker with this role is able to run docker and mount the host OS. Within docker, it is possible to modify the host OS filesystem and modify /etc/groups to gain administrative privileges. All images created after 2020-May-07 (20200507) are fixed, and if you cannot update, we recommend you edit /etc/group/security.conf and remove the "docker" user from the OS Login entry. Una vulnerabilidad en las versiones entre 20190304 y 20200507 de guest-oslogin de Google Cloud Platform, permite a un usuario al que solo se le otorgó el rol "roles/compute.osLogin" para escalar privilegios a root. • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00037.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00047.html https://cloud.google.com/support/bulletins/#gcp-2020-008 https://github.com/GoogleCloudPlatform/guest-oslogin/pull/29 https://gitlab.com/gitlab-com/gl-security/gl-redteam/red-team-tech-notes/-/tree/master/oslogin-privesc-june-2020 • CWE-276: Incorrect Default Permissions •
CVE-2020-14954
https://notcve.org/view.php?id=CVE-2020-14954
Mutt before 1.14.4 and NeoMutt before 2020-06-19 have a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a "begin TLS" response, the client reads additional data (e.g., from a man-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection." Mutt versiones anteriores a 1.14.4 y NeoMutt antes del 19-06-2020, presentan un problema de almacenamiento de STARTTLS que afecta a IMAP, SMTP y POP3. Cuando un servidor envía una respuesta "begin TLS", el cliente lee datos adicionales (por ejemplo, a partir de un atacante man-in-the-middle) y los evalúa en un contexto TLS, también se conoce como "response injection" • http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200615/000023.html http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.html http://www.mutt.org https://github.com/neomutt/neomutt/commit/fb013ec666759cb8a9e294347c7b4c1f597639cc https://github.com/neomutt/neomutt/releases/tag/20200619 https://gitlab.com/muttmua/mutt/-/commit/c547433cdf2e79191b15c6932c57f1472bfb5ff4 https://gitlab.com/muttmua/mutt/-/issues& • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •
CVE-2020-8165 – rubygem-activesupport: potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore
https://notcve.org/view.php?id=CVE-2020-8165
A deserialization of untrusted data vulnernerability exists in rails < 5.2.4.3, rails < 6.0.3.1 that can allow an attacker to unmarshal user-provided objects in MemCacheStore and RedisCacheStore potentially resulting in an RCE. Se presenta una vulnerabilidad de deserialización de datos no confiables en rails versiones anteriores a 5.2.4.3, rails versiones anteriores a 6.0.3.1, que puede permitir a un atacante desarmar los objetos proporcionados por el usuario en MemCacheStore y RedisCacheStore, lo que podría generar un RCE A flaw was found in rubygem-activesupport. An untrusted user input can be written to the cache store using the `raw: true` parameter which can lead to the result being evaluated as a marshaled object instead of plain text. The threat from this vulnerability is to data confidentiality and integrity as well as system availability. • https://github.com/masahiro331/CVE-2020-8165 https://github.com/hybryx/CVE-2020-8165 https://github.com/progfay/CVE-2020-8165 https://github.com/AssassinUKG/CVE-2020-8165 https://github.com/taipansec/CVE-2020-8165 https://github.com/umiterkol/CVE-2020-8165--Auto-Shell http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.html https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1c ht • CWE-20: Improper Input Validation CWE-502: Deserialization of Untrusted Data •