Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2018-20852 |
CWE-ID | CWE-200 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Python Universal components / Libraries / Scripting languages |
Vendor | Python.org |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU19256
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-20852
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the "http.cookiejar.DefaultPolicy.domain_return_ok" in the "Lib/http/cookiejar.py" file returns incorrect results during cookie domain checks. A remote attacker can trick a victim to execute a program that uses the "http.cookiejar.DefaultPolicy" to make an HTTP connection to an attacker-controlled server with a hostname that has another valid hostname as a suffix.
Successful exploitation of this vulnerability can allow an attacker to gain unauthorized access to sensitive information on the system, such as existing cookies. Mitigation
Install updates from vendor's website.
Vulnerable software versionsPython: 2.7.0 - 3.7.2
External linkshttp://bugs.python.org/issue35121
http://python-security.readthedocs.io/vuln/cookie-domain-check.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.