CVE-2019-1892

06.07.2019, 02:15

A vulnerability in the Secure Sockets Layer (SSL) input packet processor of Cisco Small Business 200, 300, and 500 Series Managed Switches could allow an unauthenticated, remote attacker to cause a memory corruption on an affected device. The vulnerability is due to improper validation of HTTPS packets. An attacker could exploit this vulnerability by sending a malformed HTTPS packet to the management web interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a denial of service (DoS) condition.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
cisco	CNA	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE	ADP	---				---
CISA-ADP	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 70%

Vendor	Product	Version
cisco	sf200-24_firmware	𝑥 < 1.4.10.6
cisco	sf200-24p_firmware	𝑥 < 1.4.10.6
cisco	sf200-48_firmware	𝑥 < 1.4.10.6
cisco	sf200-48p_firmware	𝑥 < 1.4.10.6
cisco	sg200-18_firmware	𝑥 < 1.4.10.6
cisco	sg200-26_firmware	𝑥 < 1.4.10.6
cisco	sg200-26p_firmware	𝑥 < 1.4.10.6
cisco	sg200-50_firmware	𝑥 < 1.4.10.6
cisco	sg200-50p_firmware	𝑥 < 1.4.10.6
cisco	sg300-10_firmware	𝑥 < 1.4.10.6
cisco	sg300-10mp_firmware	𝑥 < 1.4.10.6
cisco	sg300-10mpp_firmware	𝑥 < 1.4.10.6
cisco	sg300-10sfp_firmware	𝑥 < 1.4.10.6
cisco	sg300-10p_firmware	𝑥 < 1.4.10.6
cisco	sg300-10pp_firmware	𝑥 < 1.4.10.6
cisco	sg300-20_firmware	𝑥 < 1.4.10.6
cisco	sg300-28_firmware	𝑥 < 1.4.10.6
cisco	sg300-28p_firmware	𝑥 < 1.4.10.6
cisco	sg300-28pp_firmware	𝑥 < 1.4.10.6
cisco	sg300-28mp_firmware	𝑥 < 1.4.10.6
cisco	sg300-28sfp_firmware	𝑥 < 1.4.10.6
cisco	sg300-52_firmware	𝑥 < 1.4.10.6
cisco	sg300-52p_firmware	𝑥 < 1.4.10.6
cisco	sg300-52mp_firmware	𝑥 < 1.4.10.6
cisco	sf300-08_firmware	𝑥 < 1.4.10.6
cisco	sf302-08_firmware	𝑥 < 1.4.10.6
cisco	sf302-08mp_firmware	𝑥 < 1.4.10.6
cisco	sf302-08p_firmware	𝑥 < 1.4.10.6
cisco	sf302-08pp_firmware	𝑥 < 1.4.10.6
cisco	sf302-08mpp_firmware	𝑥 < 1.4.10.6
cisco	sf300-24_firmware	𝑥 < 1.4.10.6
cisco	sf300-24p_firmware	𝑥 < 1.4.10.6
cisco	sf300-24mp_firmware	𝑥 < 1.4.10.6
cisco	sf300-24pp_firmware	𝑥 < 1.4.10.6
cisco	sf300-48_firmware	𝑥 < 1.4.10.6
cisco	sf300-48p_firmware	𝑥 < 1.4.10.6
cisco	sf300-48pp_firmware	𝑥 < 1.4.10.6
cisco	sf500-24_firmware	𝑥 < 1.4.10.6
cisco	sf500-24p_firmware	𝑥 < 1.4.10.6
cisco	sf500-24mp_firmware	𝑥 < 1.4.10.6
cisco	sf500-48_firmware	𝑥 < 1.4.10.6
cisco	sf500-48p_firmware	𝑥 < 1.4.10.6
cisco	sf500-48mp_firmware	𝑥 < 1.4.10.6
cisco	sg500-28_firmware	𝑥 < 1.4.10.6
cisco	sg500-28p_firmware	𝑥 < 1.4.10.6
cisco	sg500-28mpp_firmware	𝑥 < 1.4.10.6
cisco	sg500-52_firmware	𝑥 < 1.4.10.6
cisco	sg500-52p_firmware	𝑥 < 1.4.10.6
cisco	sg500-52mp_firmware	𝑥 < 1.4.10.6
cisco	sg500x-24_firmware	𝑥 < 1.4.10.6
cisco	sg500x24mpp_firmware	𝑥 < 1.4.10.6
cisco	sg500x-48_firmware	𝑥 < 1.4.10.6
cisco	sg500x-48p_firmware	𝑥 < 1.4.10.6
cisco	sg500x-48mp_firmware	𝑥 < 1.4.10.6
cisco	sg500xg8f8t_firmware	𝑥 < 1.4.10.6
cisco	esw2-350g52dc_firmware	𝑥 < 1.4.10.6
cisco	esw2-550x48dc_firmware	𝑥 < 1.4.10.6

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-sbss-memcorrupt