CVE-2011-1521 describes a vulnerability in the urllib and urllib2 modules of Python 2.x (before 2.7.2) and 3.x (before 3.2.1) where redirection to "file:" URLs in Location headers is improperly handled. This flaw allows remote attackers to access sensitive local files, such as /etc/passwd, or trigger a denial of service by requesting large files like /dev/zero. With a CVSS score of 6.4, this vulnerability is of medium severity, indicating it can be exploited remotely with low attack complexity to achieve partial confidentiality and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.0CPE matchmatch criteria | cpe:2.3:a:python:python:2.0:*:*:*:*:*:*:* | ||
2.0.1CPE matchmatch criteria | cpe:2.3:a:python:python:2.0.1:*:*:*:*:*:*:* | ||
2.1CPE matchmatch criteria | cpe:2.3:a:python:python:2.1:*:*:*:*:*:*:* | ||
2.1.1CPE matchmatch criteria | cpe:2.3:a:python:python:2.1.1:*:*:*:*:*:*:* | ||
2.1.2CPE matchmatch criteria | cpe:2.3:a:python:python:2.1.2:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:N/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.