Cross-site scripting in python (Alpine package)

1) Cross-site scripting

EUVDB-ID: #VU32785

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2011-4940

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via UTF-7 encoding. 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

python (Alpine package): 2.6.4-r0 - 2.6.5-r7

CPE2.3

• cpe:2.3:o:alpine:python_alpine_package:2.6.4-r0:*:*:*:*:alpine_linux:*:1.9
• cpe:2.3:o:alpine:python_alpine_package:2.6.4-r1:*:*:*:*:alpine_linux:*:1.10
• cpe:2.3:o:alpine:python_alpine_package:2.6.5-r4:*:*:*:*:alpine_linux:*:1.10

External links

https://git.alpinelinux.org/aports/commit/?id=9001ccd2a50ee30facb4ea896ba957d4553af885
https://git.alpinelinux.org/aports/commit/?id=c5e6f94cadab6dae1e412202b9a56ea80092bf9a

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.