SB2020122816 - Multiple vulnerabilities in cherokee package for Gentoo Linux
Published: December 28, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2006-1681)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green
Vulnerability allows a remote attacker to perform XSS attacks.
The vulnerability is caused by an input validation error in Cherokee HTTPD 0.5 and earlier. A remote attacker can trick the victim to follow a specially crafted link that generates an HTTP 400 error and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) Cross-site scripting (CVE-ID: CVE-2019-20798)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Green
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists in handler_server_info.c due to insufficient sanitization of user-supplied data passed to the About page in the default configuration of the web server and its administrator panel. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Example:
http://[host]/about/"><script>alert(1)</script>
http://[host]:9090/about/"><script>alert(1)</script>3) Buffer overflow (CVE-ID: CVE-2019-20799)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing HTTP requests. A remote attacker can create a specially crafted HTTP request to the server and perform a denial of service (DoS) attack.
4) Out-of-bounds write (CVE-ID: CVE-2019-20800)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: 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:U/U:Amber
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input within the cherokee_handler_cgi_add_env_pair() function in handler_cgi.c. A remote attacker can send a specially crafted HTTP GET request with multiple headers to the server, trigger out-of-bounds write and execute arbitrary code on the target system.
5) NULL pointer dereference (CVE-ID: CVE-2020-12845)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in cherokee_validator_parse_basic or cherokee_validator_parse_digest. A remote attacker can send a specially crafted HTTP request and perform a denial of service (DoS) attack.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.