#VU38060 Input validation error in Netty and Play Framework - CVE-2015-2156

Vulnerability identifier: #VU38060

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-2156

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Netty
Universal components / Libraries / Libraries used by multiple products
Play Framework
Web applications / Modules and components for CMS

Vendor: Netty project
Jenkins

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

Netty before 3.9.8.Final, 3.10.x before 3.10.3.Final, 4.0.x before 4.0.28.Final, and 4.1.x before 4.1.0.Beta5 and Play Framework 2.x before 2.3.9 might allow remote attackers to bypass the httpOnly flag on cookies and obtain sensitive information by leveraging improper validation of cookie name and value characters.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Netty: 3.10.0 - 3.10.2, 4.0.0 - 4.0.27, 4.1.0

Play Framework: 2.0 - 4.1.0

---

External links
https://lists.fedoraproject.org/pipermail/package-announce/2015-June/159379.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-May/159166.html
https://netty.io/news/2015/05/08/3-9-8-Final-and-3.html
https://www.openwall.com/lists/oss-security/2015/05/17/1
https://www.securityfocus.com/bid/74704
https://bugzilla.redhat.com/show_bug.cgi?id=1222923
https://github.com/netty/netty/pull/3754
https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe@%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/a19bb1003b0d6cd22475ba83c019b4fc7facfef2a9e13f71132529d3@%3Ccommits.cassandra.apache.org%3E
https://lists.apache.org/thread.html/dc1275aef115bda172851a231c76c0932d973f9ffd8bc375c4aba769@%3Ccommits.cassandra.apache.org%3E
https://lists.apache.org/thread.html/ff8dcfe29377088ab655fda9d585dccd5b1f07fabd94ae84fd60a7f8@%3Ccommits.pulsar.apache.org%3E
https://www.playframework.com/security/vulnerability/CVE-2015-2156-HttpOnlyBypass

---

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.