U.S. CISA adds Fortinet products and Ivanti CSA bugs to its Known Exploited Vulnerabilities catalog

CVE-2024-23113 is a use of externally-controlled format string (CWE-134) in multiple Fortinet products, allowing an unauthenticated remote attacker to execute unauthorized code or commands by sending specially crafted packets to an affected device. The flaw carries a critical CVSS 3.1 score of 9.8 (network vector, no privileges or user interaction required, high impact on confidentiality, integrity, and availability). It affects FortiOS 7.0.0 through 7.0.13, 7.2.0 through 7.2.6, and 7.4.0 through 7.4.2; FortiProxy 7.0.0 through 7.0.14, 7.2.0 through 7.2.8, and 7.4.0 through 7.4.2; FortiPAM 1.0.0 through 1.0.3, 1.1.0 through 1.1.2, and 1.2.0; and FortiSwitchManager 7.0.0 through 7.0.3 and 7.2.0 through 7.2.3. CISA added the vulnerability to the Known Exploited Vulnerabilities catalog on 2024-10-09 and warns it is likely being exploited in the wild, though no public proof-of-concept is known. Scanning coverage reported in the trade press indicates roughly 87,000 or more internet-exposed Fortinet devices remained vulnerable and open to attack after disclosure.

Do: Upgrade affected FortiOS, FortiProxy, FortiPAM, and FortiSwitchManager deployments to a patched release per Fortinet's advisory, since the data does not specify fixed build numbers. Until patching is complete, restrict management interface access to trusted sources, minimize internet exposure of affected devices, and verify your version falls within the affected ranges above. Treat this as an actively exploited vulnerability per CISA's KEV listing (added 2024-10-09) and prioritize it accordingly.

CVE-2024-8963 is a path traversal vulnerability (CWE-22) in the Ivanti Cloud Services Appliance (CSA), a virtual appliance used to remotely manage Ivanti Endpoint Manager environments. A remote, unauthenticated attacker can send crafted requests containing directory traversal sequences to reach restricted functionality without any credentials. Successful exploitation grants access to restricted (including administrative) functions on the appliance, and public reporting indicates it has been chained with other CSA zero-day flaws by nation-state attackers to infiltrate networks. All CSA 4.6.x releases before Patch 519 are affected, and the 4.6.x product line has reached end-of-life, meaning future 4.6.x vulnerabilities will not receive fixes. Exploitation is confirmed in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2024-09-19, and multiple outlets report Chinese-linked actors exploiting CSA zero-days against French government, telecom and other critical-infrastructure targets.

Do: Upgrade CSA 4.6.x to Patch 519 or later, or move to the supported 5.0.x line; because 4.6.x is end-of-life, CISA urges removing CSA 4.6.x from service or migrating to 5.0.x rather than relying on future 4.6.x patches. Until patched, restrict or remove internet exposure of CSA appliances and review logs for unauthenticated access to restricted functionality, since this flaw is being chained with other CSA vulnerabilities in targeted intrusions.

CVE-2024-9380 is an OS command injection flaw (CWE-77/CWE-78) in the admin web console of Ivanti Cloud Services Appliance (CSA), fixed in version 5.0.2. A remote attacker who is already authenticated with administrative privileges can inject arbitrary operating system commands through the console, which the appliance then executes. Successful exploitation yields remote code execution with high impact on confidentiality, integrity, and availability (CVSS 3.1: 7.2). All CSA releases before 5.0.2 are affected, and the widely deployed 4.6.x line has reached End-of-Life, so EOL users must remove it from service or move to 5.0.x or later. The flaw was added to CISA's Known Exploited Vulnerabilities catalog on 2024-10-09, and contemporaneous reporting describes Chinese nation-state actors exploiting Ivanti CSA zero-days against French government and telecom targets, with a 63.2% EPSS probability of exploitation in the next 30 days (99th percentile).

Do: Upgrade Ivanti CSA to 5.0.2 or later; if you are running the End-of-Life 4.6.x line, either remove it from service or migrate to the supported 5.0.x line, per CISA's KEV required action. Restrict exposure of the admin web console (do not leave it directly internet-facing) and verify whether your appliance was targeted. Given reported nation-state exploitation of CSA zero-days, review appliance logs and admin credentials for signs of compromise.

Path traversal in Ivanti CSA before version 5.0.2 allows a remote authenticated attacker with admin privileges to bypass restrictions.