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Fortinet has warned of a critical security flaw impacting its FortiClientEMS software that could allow attackers to achieve code execution on affected systems. "An improper neutralization of special elements used in an SQL Command ('SQL Injection') vulnerability [CWE-89] in FortiClientEMS may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted requests," the company  said  in an advisory. The vulnerability, tracked as CVE-2023-48788, carries a CVSS rating of 9.3 out of a maximum of 10. It impacts the following versions - FortiClientEMS 7.2.0 through 7.2.2 (Upgrade to 7.2.3 or above) FortiClientEMS 7.0.1 through 7.0.10 (Upgrade to 7.0.11 or above) Horizon3.ai, which  plans  to release additional technical details and a proof-of-concept (PoC) exploit next week, said the shortcoming could be exploited to obtain remote code execution as SYSTEM on the server. Fortinet has credited Thiago Santana from the Forticlient

Fortinet on Monday disclosed that a  newly patched critical flaw  impacting FortiOS and FortiProxy may have been "exploited in a limited number of cases" in attacks targeting government, manufacturing, and critical infrastructure sectors. The  vulnerability , dubbed XORtigate and tracked as  CVE-2023-27997  (CVSS score: 9.2), concerns a  heap-based buffer overflow  vulnerability in FortiOS and FortiProxy SSL-VPN that could allow a remote attacker to execute arbitrary code or commands via specifically crafted requests. LEXFO security researchers Charles Fol and Dany Bach have been credited with discovering and reporting the flaw. It was addressed by Fortinet on June 9, 2023 in the following versions - FortiOS-6K7K version 7.0.12 or above FortiOS-6K7K version 6.4.13 or above FortiOS-6K7K version 6.2.15 or above FortiOS-6K7K version 6.0.17 or above FortiProxy version 7.2.4 or above FortiProxy version 7.0.10 or above FortiProxy version 2.0.13 or above FortiOS versio

Shadow apps, a segment of Shadow IT, are SaaS applications purchased without the knowledge of the security team. While these applications may be legitimate, they operate within the blind spots of the corporate security team and expose the company to attackers.  Shadow apps may include instances of software that the company is already using. For example, a dev team may onboard their own instance of GitHub to keep their work separate from other developers. They might justify the purchase by noting that GitHub is an approved application, as it is already in use by other teams. However, since the new instance is used outside of the security team's view, it lacks governance. It may store sensitive corporate data and not have essential protections like MFA enabled, SSO enforced, or it could suffer from weak access controls. These misconfigurations can easily lead to risks like stolen source code and other issues. Types of Shadow Apps  Shadow apps can be categorized based on their interac

Fortinet has released fixes to  address 15 security flaws , including one critical vulnerability impacting FortiOS and FortiProxy that could enable a threat actor to take control of affected systems. The issue, tracked as  CVE-2023-25610 , is rated 9.3 out of 10 for severity and was internally discovered and reported by its security teams. "A buffer underwrite ('buffer underflow') vulnerability in FortiOS and FortiProxy administrative interface may allow a remote unauthenticated attacker to execute arbitrary code on the device and/or perform a DoS on the GUI, via specifically crafted requests," Fortinet  said  in an advisory. Underflow bugs , also called  buffer underruns , occur when the input data is shorter than the reserved space, causing unpredictable behavior or leakage of sensitive data from memory. Other possible consequences include memory corruption that could either be weaponized to induce a crash or execute arbitrary code. Fortinet said it's not

Fortinet has released security updates to  address 40 vulnerabilities  in its software lineup, including FortiWeb, FortiOS, FortiNAC, and FortiProxy, among others. Two of the 40 flaws are rated Critical, 15 are rated High, 22 are rated Medium, and one is rated Low in severity. Top of the list is a severe bug residing in the FortiNAC network access control solution (CVE-2022-39952, CVSS score: 9.8) that could lead to arbitrary code execution. "An external control of file name or path vulnerability [CWE-73] in FortiNAC web server may allow an unauthenticated attacker to perform arbitrary write on the system," Fortinet  said  in an advisory earlier this week. The products impacted by the vulnerability are as follows - FortiNAC version 9.4.0 FortiNAC version 9.2.0 through 9.2.5 FortiNAC version 9.1.0 through 9.1.7 FortiNAC 8.8 all versions FortiNAC 8.7 all versions FortiNAC 8.6 all versions FortiNAC 8.5 all versions, and FortiNAC 8.3 all versions Patches have bee

A proof-of-concept (PoC) exploit code has been made available for the recently disclosed critical security flaw affecting Fortinet FortiOS, FortiProxy, and FortiSwitchManager, making it imperative that users move quickly to apply the patches. "FortiOS exposes a management web portal that allows a user to configure the system," Horizon3.ai researcher James Horseman  said . "Additionally, a user can SSH into the system which exposes a locked down CLI interface." The issue, tracked as  CVE-2022-40684  (CVSS score: 9.6), concerns an  authentication bypass  vulnerability that could allow a remote attacker to perform malicious operations on the administrative interface via specially crafted HTTP(S) requests. A successful exploitation of the shortcoming is tantamount to granting complete access "to do just about anything" on the affected system, including altering network configurations, adding malicious users, and intercepting network traffic. That said,

Fortinet has privately warned its customers of a security flaw affecting FortiGate firewalls and FortiProxy web proxies that could potentially allow an attacker to perform unauthorized actions on susceptible devices. Tracked as CVE-2022-40684 (CVSS score: 9.6), the critical flaw relates to an authentication bypass vulnerability that may permit an unauthenticated adversary to carry out arbitrary operations on the administrative interface via a specially crafted HTTP(S) request. The issue impacts the following versions, and has been addressed in FortiOS versions  7.0.7  and  7.2.2 , and FortiProxy versions 7.0.7 and 7.2.1 released this week: FortiOS - From 7.0.0 to 7.0.6 and from 7.2.0 to 7.2.1 FortiProxy - From 7.0.0 to 7.0.6 and 7.2.0 "Due to the ability to exploit this issue remotely, Fortinet is strongly recommending all customers with the vulnerable versions to perform an immediate upgrade," the company  cautioned  in an alert shared by a security researcher w