2e857505f334CONFSERVER-69322XStream upgrade to 1.4.18
6.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.254 Low
EPSS
Percentile
96.7%
h3. Problem
XStream is vulnerable to security exploits such as highlighted in the image attached.
(i) The list of CVEs can be found in [https://x-stream.github.io/security.html]
This ticket tracks its upgrade to 1.4.18.
h3. Environment
Confluence v7.13
h3. Workaround
Set {{xstream.allowlist.enable}} sysprop to true. This is equivalent to XStream 1.4.18 behaviour and it exist in Confluence 7.10 and up. But it comes with a risk of broken third-party plugins which have not yet configured [xstream-security|https://confluence.atlassian.com/doc/xstream-1-4-upgrade-1026045605.html] module with their classes. Confirm with Third-party plugin vendors before toggling it if your Confluence instance uses a third-party plugin and it relies on XStream.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| confluence data center | le | 7.10.0 | |
| confluence data center | le | 7.13.0 | |
| confluence data center | lt | 7.18.0 |
Related
6.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.254 Low
EPSS
Percentile
96.7%