Vulnerability Monitor

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CVE-2015-2156

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.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 3 products from netty, from lightbend, from playframework organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2017-10-18T15:29:00.173

Last Modified

2026-05-13T00:24:29.033

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	netty	netty	≤ 3.9.7	Yes
Application	netty	netty	3.10.0	Yes
Application	netty	netty	3.10.1	Yes
Application	netty	netty	3.10.2	Yes
Application	netty	netty	4.0.0	Yes
Application	netty	netty	4.0.1	Yes
Application	netty	netty	4.0.2	Yes
Application	netty	netty	4.0.3	Yes
Application	netty	netty	4.0.4	Yes
Application	netty	netty	4.0.5	Yes
Application	netty	netty	4.0.6	Yes
Application	netty	netty	4.0.7	Yes
Application	netty	netty	4.0.8	Yes
Application	netty	netty	4.0.9	Yes
Application	netty	netty	4.0.10	Yes
Application	netty	netty	4.0.11	Yes
Application	netty	netty	4.0.12	Yes
Application	netty	netty	4.0.13	Yes
Application	netty	netty	4.0.14	Yes
Application	netty	netty	4.0.15	Yes
Application	netty	netty	4.0.16	Yes
Application	netty	netty	4.0.17	Yes
Application	netty	netty	4.0.18	Yes
Application	netty	netty	4.0.19	Yes
Application	netty	netty	4.0.20	Yes
Application	netty	netty	4.0.21	Yes
Application	netty	netty	4.0.22	Yes
Application	netty	netty	4.0.23	Yes
Application	netty	netty	4.0.24	Yes
Application	netty	netty	4.0.25	Yes
Application	netty	netty	4.0.26	Yes
Application	netty	netty	4.0.27	Yes
Application	netty	netty	4.1.0	Yes
Application	netty	netty	4.1.0	Yes
Application	netty	netty	4.1.0	Yes
Application	netty	netty	4.1.0	Yes
Application	lightbend	play_framework	2.0	Yes
Application	lightbend	play_framework	2.0	Yes
Application	lightbend	play_framework	2.0	Yes
Application	lightbend	play_framework	2.0.2	Yes
Application	lightbend	play_framework	2.0.2	Yes
Application	lightbend	play_framework	2.0.2	Yes
Application	lightbend	play_framework	2.0.3	Yes
Application	lightbend	play_framework	2.0.3	Yes
Application	lightbend	play_framework	2.0.3	Yes
Application	lightbend	play_framework	2.0.4	Yes
Application	lightbend	play_framework	2.0.4	Yes
Application	lightbend	play_framework	2.0.4	Yes
Application	lightbend	play_framework	2.0.5	Yes
Application	lightbend	play_framework	2.0.5	Yes
Application	lightbend	play_framework	2.0.5	Yes
Application	lightbend	play_framework	2.0.6	Yes
Application	lightbend	play_framework	2.0.7	Yes
Application	lightbend	play_framework	2.0.8	Yes
Application	lightbend	play_framework	2.1.0	Yes
Application	lightbend	play_framework	2.1.1	Yes
Application	lightbend	play_framework	2.1.1	Yes
Application	lightbend	play_framework	2.2.0	Yes
Application	lightbend	play_framework	2.2.1	Yes
Application	lightbend	play_framework	2.2.2	Yes
Application	lightbend	play_framework	2.2.6	Yes
Application	lightbend	play_framework	2.3.0	Yes
Application	lightbend	play_framework	2.3.0	Yes
Application	lightbend	play_framework	2.3.0	Yes
Application	lightbend	play_framework	2.3.1	Yes
Application	lightbend	play_framework	2.3.2	Yes
Application	lightbend	play_framework	2.3.2	Yes
Application	lightbend	play_framework	2.3.2	Yes
Application	lightbend	play_framework	2.3.3	Yes
Application	lightbend	play_framework	2.3.4	Yes
Application	lightbend	play_framework	2.3.5	Yes
Application	lightbend	play_framework	2.3.6	Yes
Application	lightbend	play_framework	2.3.7	Yes
Application	lightbend	play_framework	2.3.8	Yes
Application	playframework	play_framework	2.0	Yes
Application	playframework	play_framework	2.0	Yes
Application	playframework	play_framework	2.0	Yes
Application	playframework	play_framework	2.0	Yes
Application	playframework	play_framework	2.0.1	Yes
Application	playframework	play_framework	2.1.1	Yes
Application	playframework	play_framework	2.1.1	Yes
Application	playframework	play_framework	2.1.1	Yes
Application	playframework	play_framework	2.1.2	Yes
Application	playframework	play_framework	2.1.2	Yes
Application	playframework	play_framework	2.1.2	Yes
Application	playframework	play_framework	2.1.3	Yes
Application	playframework	play_framework	2.1.3	Yes
Application	playframework	play_framework	2.1.3	Yes
Application	playframework	play_framework	2.1.4	Yes
Application	playframework	play_framework	2.1.4	Yes
Application	playframework	play_framework	2.1.4	Yes
Application	playframework	play_framework	2.1.5	Yes
Application	playframework	play_framework	2.1.6	Yes
Application	playframework	play_framework	2.1.6	Yes
Application	playframework	play_framework	2.2.0	Yes
Application	playframework	play_framework	2.2.0	Yes
Application	playframework	play_framework	2.2.0	Yes
Application	playframework	play_framework	2.2.0	Yes
Application	playframework	play_framework	2.2.0	Yes
Application	playframework	play_framework	2.2.1	Yes
Application	playframework	play_framework	2.2.2	Yes
Application	playframework	play_framework	2.2.2	Yes
Application	playframework	play_framework	2.2.2	Yes
Application	playframework	play_framework	2.2.2	Yes
Application	playframework	play_framework	2.2.3	Yes
Application	playframework	play_framework	2.2.3	Yes
Application	playframework	play_framework	2.2.3	Yes
Application	playframework	play_framework	2.2.4	Yes
Application	playframework	play_framework	2.2.5	Yes
Application	playframework	play_framework	2.3	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159379.html Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/159166.html Third Party Advisory ([email protected])
http://netty.io/news/2015/05/08/3-9-8-Final-and-3.html Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2015/05/17/1 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/74704 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1222923 Issue Tracking, Third Party Advisory ([email protected])
https://github.com/netty/netty/pull/3754 Third Party Advisory ([email protected])
https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E ([email protected])
https://lists.apache.org/thread.html/a19bb1003b0d6cd22475ba83c019b4fc7facfef2a9e13f71132529d3%40%3Ccommits.cassandra.apache.org%3E ([email protected])
https://lists.apache.org/thread.html/dc1275aef115bda172851a231c76c0932d973f9ffd8bc375c4aba769%40%3Ccommits.cassandra.apache.org%3E ([email protected])
https://lists.apache.org/thread.html/ff8dcfe29377088ab655fda9d585dccd5b1f07fabd94ae84fd60a7f8%40%3Ccommits.pulsar.apache.org%3E ([email protected])
https://www.playframework.com/security/vulnerability/CVE-2015-2156-HttpOnlyBypass Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159379.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/159166.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://netty.io/news/2015/05/08/3-9-8-Final-and-3.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2015/05/17/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/74704 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1222923 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/netty/netty/pull/3754 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E (af854a3a-2127-422b-91ae-364da2661108)
https://lists.apache.org/thread.html/a19bb1003b0d6cd22475ba83c019b4fc7facfef2a9e13f71132529d3%40%3Ccommits.cassandra.apache.org%3E (af854a3a-2127-422b-91ae-364da2661108)
https://lists.apache.org/thread.html/dc1275aef115bda172851a231c76c0932d973f9ffd8bc375c4aba769%40%3Ccommits.cassandra.apache.org%3E (af854a3a-2127-422b-91ae-364da2661108)
https://lists.apache.org/thread.html/ff8dcfe29377088ab655fda9d585dccd5b1f07fabd94ae84fd60a7f8%40%3Ccommits.pulsar.apache.org%3E (af854a3a-2127-422b-91ae-364da2661108)
https://www.playframework.com/security/vulnerability/CVE-2015-2156-HttpOnlyBypass Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For netty's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.