Category Archives: Advisories

Advisories

USN-7060-1: EDK II vulnerabilities

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It was discovered that EDK II did not check the buffer length in XHCI,
which could lead to a stack overflow. A local attacker could potentially
use this issue to cause a denial of service. This issue only affected
Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-0161)

Laszlo Ersek discovered that EDK II incorrectly handled recursion. A
remote attacker could possibly use this issue to cause EDK II to consume
resources, leading to a denial of service. This issue only affected
Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2021-28210)

Satoshi Tanda discovered that EDK II incorrectly handled decompressing
certain images. A remote attacker could use this issue to cause EDK II to
crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
(CVE-2021-28211)

It was discovered that EDK II incorrectly decoded certain strings. A remote
attacker could use this issue to cause EDK II to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2021-38575)

It was discovered that EDK II had integer underflow vulnerability in
SmmEntryPoint, which could result in a buffer overflow. An attacker
could potentially use this issue to cause a denial of service.
(CVE-2021-38578)

Elison Niven discovered that OpenSSL, vendored in EDK II, incorrectly
handled the c_rehash script. A local attacker could possibly use this
issue to execute arbitrary commands when c_rehash is run. This issue
only affected Ubuntu 16.04 LTS. (CVE-2022-1292)

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Advisories

USN-7043-4: cups-filters vulnerabilities

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USN-7043-1 fixed vulnerabilities in cups-filters. This update improves the
fix for CVE-2024-47176 by removing support for the legacy CUPS printer
discovery protocol entirely.

Original advisory details:

Simone Margaritelli discovered that the cups-filters cups-browsed
component could be used to create arbitrary printers from outside the
local network. In combination with issues in other printing components, a
remote attacker could possibly use this issue to connect to a system,
created manipulated PPD files, and execute arbitrary code when a printer
is used. This update disables support for the legacy CUPS printer
discovery protocol. (CVE-2024-47176)

Simone Margaritelli discovered that cups-filters incorrectly sanitized IPP
data when creating PPD files. A remote attacker could possibly use this
issue to manipulate PPD files and execute arbitrary code when a printer is
used. (CVE-2024-47076)

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Advisories

USN-7042-2: cups-browsed vulnerability

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USN-7042-1 fixed a vulnerability in cups-browsed. This update improves the
fix by removing support for the legacy CUPS printer discovery protocol
entirely.

Original advisory details:

Simone Margaritelli discovered that cups-browsed could be used to create
arbitrary printers from outside the local network. In combination with
issues in other printing components, a remote attacker could possibly use
this issue to connect to a system, created manipulated PPD files, and
execute arbitrary code when a printer is used. This update disables
support for the legacy CUPS printer discovery protocol.

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Advisories

Ivanti CSA (Cloud Services Appliance) zero-day Attack

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What is the Attack?Attackers are actively exploiting multiple zero-day vulnerabilities affecting Ivanti CSA (Cloud Services Appliance) that could lead an attacker to gain admin access, bypass security measures, run arbitrary SQL commands, and execute code remotely.The FortiGuard Incident Response (IR) team has been engaged in one of the compromised CSA (Cloud Services Appliance). As the investigation is still ongoing, more details about the campaign will be provided once available. CVE-2024-9379: SQL injection in the admin web console of Ivanti CSA before version 5.0.2 allows a remote authenticated attacker with admin privileges to run arbitrary SQL statements.CVE-2024-9380: An OS command injection vulnerability in the admin web console of Ivanti CSA before version 5.0.2 allows a remote authenticated attacker with admin privileges to obtain remote code execution.CVE-2024-9381: Path traversal in Ivanti CSA before version 5.0.2 allows a remote authenticated attacker with admin privileges to bypass restrictions.CVE-2024-8963: Path Traversal in the Ivanti CSA before 4.6 Patch 519 allows a remote unauthenticated attacker to access restricted functionality.What is the recommended Mitigation?Ivanti has released updates for Ivanti CSA (Cloud Services Appliance) which addresses these vulnerabilities. Security Advisory Ivanti CSA (Cloud Services Appliance)In the advisory, Ivanti has mentioned that they have observed limited exploitation of CSA 4.6 when CVE-2024-9379 or CVE-2024-9380 are chained with CVE-2024-8963.What FortiGuard Coverage is available?FortiGuard recommends users apply the vendor’s fixes as mentioned in the advisory. FortiGuard Web Filtering service has blocked all the known Indicators of Compromise (IoCs) captured during the IR engagement.FortiGuard Antivirus service has blocked all the known malware used by the threat actor in the related campaign.FortiGuard IPS protection is available for CVE-2024-8963 “Ivanti.Cloud.Service.Appliance.datetime.Command.Injection” to defend against the attack targeting the vulnerable Ivanti CSA systems.FortiGuard IPS protection is currently being investigated for CVE-2024-9379, CVE-2024-9380, and CVE-2024-9381.The FortiGuard Incident Response team can be engaged to help with any suspected compromise.

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