CVE-2015-8124: Medium severity symfony vulnerability

Published Nov 23, 2015
·
Updated

A session fixation vulnerability within the "Remember Me" login feature allows an attacker to impersonate the victim towards the web application if the session id value was previously known to the attacker. This issue has been fixed in Symfony 2.3.35, 2.6.12, and 2.7.7. Note that no fixes are provided for Symfony 2.4 and 2.5 as they are not maintained anymore. Symfony 2.8 and 3.0 haven't been released yet and the fix will be included in their first stable releases.

Other sources

CVE-2015-8124: Session Fixation in the "Remember Me" Login Feature

Session fixation vulnerability in the "Remember Me" login feature in Symfony 2.3.x before 2.3.35, 2.6.x before 2.6.12, and 2.7.x before 2.7.7 allows remote attackers to hijack web sessions via a session id.

Affected Software

65 affected componentsFixes available
composer/symfony/symfony>=2.3.0, <2.3.35, >=2.4.0, <2.5.0, >=2.5.0, <2.6.0, >=2.6.0, <2.6.12, >=2.7.0, <2.7.7
composer/symfony/security>=2.3.0, <2.3.35, >=2.4.0, <2.5.0, >=2.5.0, <2.6.0, >=2.6.0, <2.6.12, >=2.7.0, <2.7.7
composer/symfony/security-http>=2.4.0, <2.5.0, >=2.5.0, <2.6.0, >=2.6.0, <2.6.12, >=2.7.0, <2.7.7
composer/symfony/security>=2.7.0<2.7.7
2.7.7
composer/symfony/security>=2.4.0<2.6.12
2.6.12
composer/symfony/security>=2.3.0<2.3.35
2.3.35
composer/symfony/security-http>=2.7.0<2.7.7
2.7.7
composer/symfony/security-http>=2.4.0<2.6.12
2.6.12
composer/symfony/symfony>=2.7.0<2.7.7
2.7.7
composer/symfony/symfony>=2.4.0<2.6.12
2.6.12
composer/symfony/symfony>=2.3.0<2.3.35
2.3.35
SensioLabs Symfony=2.3.0
SensioLabs Symfony=2.3.1
SensioLabs Symfony=2.3.2
SensioLabs Symfony=2.3.3
SensioLabs Symfony=2.3.4
SensioLabs Symfony=2.3.5
SensioLabs Symfony=2.3.6
SensioLabs Symfony=2.3.7
SensioLabs Symfony=2.3.8
SensioLabs Symfony=2.3.9
SensioLabs Symfony=2.3.10
SensioLabs Symfony=2.3.11
SensioLabs Symfony=2.3.12
SensioLabs Symfony=2.3.13
SensioLabs Symfony=2.3.14
SensioLabs Symfony=2.3.15
SensioLabs Symfony=2.3.16
SensioLabs Symfony=2.3.17
SensioLabs Symfony=2.3.18
SensioLabs Symfony=2.3.19
SensioLabs Symfony=2.3.20
SensioLabs Symfony=2.3.21
SensioLabs Symfony=2.3.22
SensioLabs Symfony=2.3.23
SensioLabs Symfony=2.3.24
SensioLabs Symfony=2.3.25
SensioLabs Symfony=2.3.26
SensioLabs Symfony=2.3.27
SensioLabs Symfony=2.3.28
SensioLabs Symfony=2.3.29
SensioLabs Symfony=2.3.30
SensioLabs Symfony=2.3.31
SensioLabs Symfony=2.3.32
SensioLabs Symfony=2.3.33
SensioLabs Symfony=2.3.34
SensioLabs Symfony=2.6.0
SensioLabs Symfony=2.6.1
SensioLabs Symfony=2.6.2
SensioLabs Symfony=2.6.3
SensioLabs Symfony=2.6.4
SensioLabs Symfony=2.6.5
SensioLabs Symfony=2.6.6
SensioLabs Symfony=2.6.7
SensioLabs Symfony=2.6.8
SensioLabs Symfony=2.6.9
SensioLabs Symfony=2.6.10
SensioLabs Symfony=2.6.11
SensioLabs Symfony=2.7.0
SensioLabs Symfony=2.7.1
SensioLabs Symfony=2.7.2
SensioLabs Symfony=2.7.3
SensioLabs Symfony=2.7.4
SensioLabs Symfony=2.7.5
SensioLabs Symfony=2.7.6

Event History

Nov 23, 2015
Advisory Published
12:58 PM
Dec 7, 2015
CVE Published
via MITRE·08:00 PM
Data Sourced
via MITRE·08:00 PM
Description

Frequently Asked Questions

1

What is the severity of CVE-2015-8124?

CVE-2015-8124 is rated as a medium severity vulnerability due to its potential for session fixation attacks.

2

How do I fix CVE-2015-8124?

To fix CVE-2015-8124, upgrade to Symfony versions 2.3.35, 2.6.12, or 2.7.7.

3

Which versions of Symfony are affected by CVE-2015-8124?

CVE-2015-8124 affects Symfony versions from 2.3.0 up to but not including 2.3.35, as well as 2.4.x and 2.5.x versions.

4

What types of attacks can CVE-2015-8124 enable?

CVE-2015-8124 can enable session fixation attacks, allowing an attacker to impersonate the victim.

5

Is CVE-2015-8124 limited to web applications?

Yes, CVE-2015-8124 specifically impacts web applications that utilize the 'Remember Me' login feature.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203