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Regulators fine AT&T $13 million for failing to protect customer information held by a third-party vendor, and extend consumer data protections to the cloud.

exec.CommandContext in Chaosblade 0.3 through 1.7.3, when server mode is used, allows OS command execution via the cmd parameter without authentication.

Hackers sent a convincing lure document, but after 20 years of similar attacks, the target organization was well prepared.

Ubuntu Security Notice 6885-3 - USN-6885-1 fixed several vulnerabilities in Apache. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Orange Tsai discovered that the Apache HTTP Server mod_rewrite module incorrectly handled certain substitutions. A remote attacker could possibly use this issue to execute scripts in directories not directly reachable by any URL, or cause a denial of service. Some environments may require using the new UnsafeAllow3F flag to handle unsafe substitutions.

Ubuntu Security Notice 7021-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

Ubuntu Security Notice 7020-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

Online Traffic Offense version 1.0 suffers from cross site request forgery and arbitrary file upload vulnerabilities.

A vulnerability has been discovered and fixed in Mesop that could potentially allow unauthorized access to files on the server hosting the Mesop application. The vulnerability was related to insufficient input validation in a specific endpoint. This could have allowed an attacker to access files not intended to be served. Users are strongly advised to update to the latest version of Mesop immediately. The latest version includes a fix for this vulnerability. We would like to thank @Letm3through for reporting this issue and proposing mitigations to address this issue.

### Impact The logic in place to facilitate the update process via the user interface lacks access control to verify if permission exists to perform the tasks. Prior to this patch being applied it might be possible for an attacker to access the Mautic version number or to execute parts of the upgrade process without permission. As upgrading in the user interface is deprecated, this functionality is no longer required. ### Patches Upgrade to 4.4.13 or 5.1.1 or later. ### Workarounds None. ### For more information If you have any questions or comments about this advisory: * Email us at [[email protected]](mailto:[email protected])

## Background Multiple caveats over the same indirect subject type on the same relation can result in no permission being returned when permission is expected For example, given this schema: ``` definition user {} caveat somecaveat(somefield int) { somefield == 42 } definition group { relation member: user } definition resource { relation viewer: group#member with somecaveat permission view = folder->view } ``` If the resource has multiple groups, and each group is caveated, it is possible for the returned permission to be "no permission" when permission is expected. ## Impact Permission is returned as NO_PERMISSION when PERMISSION is expected on the CheckPermission API. ## Workarounds Do not use caveats or do not use caveats on an indirect subject type with multiple entries