Stack-based buffer overflow in yassl.com products - CVE-2011-2900
Published: December 27, 2016 / Updated: March 14, 2017
Vulnerability identifier: #VU2935
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2011-2900
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: shttpd.sourceforge.net
Cesanta Software Ltd.
yassl.com
Cesanta Software Ltd.
yassl.com
Affected software:
SHTTPD
Mongoose
yaSSL
SHTTPD
Mongoose
yaSSL
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to stack-based buffer overflow, caused by improper bounds checking by the put_dir() function when processing malicious requests. A remote attacker can send a specially crafted HTTP PUT request, trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.
Note: the vulnerability was being actively exploited.
The weakness exists due to stack-based buffer overflow, caused by improper bounds checking by the put_dir() function when processing malicious requests. A remote attacker can send a specially crafted HTTP PUT request, trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.
Note: the vulnerability was being actively exploited.