Cisco has unveiled patches to tackle a substantial-severity security flaw impacting its Protected Client application that could be exploited by a menace actor to open up a VPN session with that of a focused consumer.
The networking gear business described the vulnerability, tracked as CVE-2024-20337 (CVSS rating: 8.2), as permitting an unauthenticated, remote attacker to perform a carriage return line feed (CRLF) injection attack from a user.
Arising as a consequence of inadequate validation of person-supplied input, a risk actor could leverage the flaw to trick a person into clicking on a specifically crafted link although developing a VPN session.
“A successful exploit could allow the attacker to execute arbitrary script code in the browser or entry sensitive, browser-centered information and facts, such as a valid SAML token,” the business mentioned in an advisory.
“The attacker could then use the token to create a distant obtain VPN session with the privileges of the impacted person. Unique hosts and products and services driving the VPN headend would continue to require more credentials for thriving accessibility.”
The vulnerability impacts Protected Customer for Windows, Linux, and macOS, and has been addressed in the following variations –
- Before than 4.10.04065 (not susceptible)
- 4.10.04065 and later on (fixed in 4.10.08025)
- 5. (migrate to a preset release)
- 5.1 (set in 5.1.2.42)
Amazon security researcher Paulos Yibelo Mesfin has been credited with getting and reporting the flaw, telling The Hacker News that the shortcoming permits attackers to obtain nearby interior networks when a focus on visits a web-site below their manage.
Cisco has also printed fixes for CVE-2024-20338 (CVSS score: 7.3), a further substantial-severity flaw in Safe Customer for Linux that could permit an authenticated, regional attacker to elevate privileges on an influenced unit. It has been settled in variation 5.1.2.42.
“An attacker could exploit this vulnerability by copying a destructive library file to a specific listing in the filesystem and persuading an administrator to restart a precise process,” it explained. “A thriving exploit could allow for the attacker to execute arbitrary code on an affected system with root privileges.”
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Some parts of this article are sourced from:
thehackernews.com
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