CVE-2010-3870 Security feature bypass in n/a
Remote attackers can bypass XSS and SQL injection protections in PHP applications by exploiting improper UTF-8 handling in the utf8_decode function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2010-3870?
CVE-2010-3870 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 12 Nov 2010. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The utf8_decode function in PHP before 5.3.4 does not properly handle non-shortest form UTF-8 encoding and ill-formed subsequences in UTF-8 data, which makes it easier for remote attackers to bypass cross-site scripting (XSS) and SQL injection protection mechanisms via a crafted string.
Weakness: CWE-20
Which versions are affected by CVE-2010-3870?
It affects 2 products.
Products include Canonical Ubuntu Linux, Php Php.
How do I fix CVE-2010-3870?
Upgrade to a fixed version.
Is CVE-2010-3870 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-3870 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as GHSA-gvvf-r2h9-2v8x.