Talos reported WebKit flaws in WebKit that allow Remote Code Execution
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2020-13584 +1 in the same advisory: …13543 | An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.1 x64. An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.1 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in a remote code execution. The victim needs to visit a malicious web site to trigger this vulnerability. NVD description · AI analysis pending | 8.8 | 5% | PoC |
| — | |
| CVE-2020-9948 | A type confusion issue was addressed with improved memory handling. A type confusion issue was addressed with improved memory handling. This issue is fixed in Safari 14.0. Processing maliciously crafted web content may lead to arbitrary code execution. NVD description · AI analysis pending | 8.8 | 2% |
| — | ||
| CVE-2020-9951 | A use after free issue was addressed with improved memory management. A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.0. Processing maliciously crafted web content may lead to arbitrary code execution. NVD description · AI analysis pending | 8.8 group max | 2% |
| — |
Full article351 words · extracted from securityaffairs.com · click to collapse
Pierluigi Paganini
December 01, 2020
Talos experts found flaws in the WebKit browser engine that can be also exploited for remote code execution via specially crafted websites.
Cisco’s Talos team discovered security flaws in the WebKit browser engine, including flaws that can be exploited by a remote attacker to gain code execution by tricking the user into visiting a malicious website.
WebKit is a browser engine developed by Apple and primarily used in its Safari web browser, as well as all iOS web browsers. WebKit is also used by the BlackBerry Browser, PlayStation consoles beginning from the PS3, the Tizen mobile operating systems, and a browser included with the Amazon Kindle e-book reader.
The vulnerabilities discovered by Cisco’s Talos are high-severity use-after-free issues.
“The WebKit browser engine contains multiple vulnerabilities in various functions of the software. A malicious web page code could trigger multiple use-after-free errors, which could lead to remote and arbitrary code execution.” read the Cisco Talos advisory. “An attacker could exploit these vulnerabilities by tricking the user into visiting a specially crafted, malicious web page on a browser utilizing WebKit.”
The issues affect WebKit’s WebSocket, AudioSourceProviderGStreamer and ImageDecoderGStreamer functionality.
Below the details of the flaws:
CVE-2020-13584 – An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.1 x64. An attacker could trigger a use-after-free condition by tricking the victim into visiting a specially crafted HTML web page, resulting in remote code execution.
CVE-2020-13543 – A code execution flaw resides in the WebSocket functionality of Webkit WebKitGTK 2.30.0. An attacker could trigger a use-after-free vulnerability by tricking a user into visiting a specially crafted web page, which can lead to remote code execution.
Talos researchers also published SNORT rules (Snort Rules: 55844, 55845, 56126, 56127, 56379 – 56382) for the above flaws to allow customers to detect exploitation attempts.
The developers of WebKitGTK and WPE Several vulnerabilities published a security advisory for a set of vulnerabilities (CVE-2020-13584, CVE-2020-9948, CVE-2020-9951, CVE-2020-9952, CVE-2020-9983) that reside in WebKitGTK and WPE WebKit.
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(SecurityAffairs – hacking, WebKit)
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Text extracted automatically; images, tables and formatting may be missing. Original: https://securityaffairs.com/111698/hacking/webkit-browser-engine-flaws.html