Bug 1872707 (CVE-2020-24616)

Summary:	CVE-2020-24616 jackson-databind: mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPDataSource
Product:	[Other] Security Response	Reporter:	Michael Kaplan <mkaplan>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	aboyko, aileenc, akoufoud, alazarot, almorale, anstephe, aos-bugs, asoldano, atangrin, ataylor, avibelli, bbaranow, bbuckingham, bcourt, bgeorges, bibryam, bkearney, bmaxwell, bmontgom, brian.stansberry, btotty, cdewolf, chazlett, clement.escoffier, dandread, darran.lofthouse, dkreling, dosoudil, drieden, eleandro, eparis, eric.wittmann, etirelli, ganandan, ggaughan, gmalinko, gsmet, hhorak, hhudgeon, ibek, iweiss, janstey, java-maint, java-sig-commits, jawilson, jbalunas, jburrell, jcantril, jjoyce, jochrist, jokerman, jolee, jorton, jpallich, jperkins, jross, jschatte, jschluet, jstastny, jwon, kbasil, krathod, kverlaen, kwills, lef, lgao, lhh, lpeer, lthon, lzap, mburns, mkolesni, mmccune, mnovotny, msochure, msvehla, mszynkie, nmoumoul, nstielau, nwallace, pantinor, pdrozd, pgallagh, pjindal, pmackay, psotirop, puntogil, rchan, rguimara, rhcs-maint, rjerrido, rrajasek, rruss, rstancel, rsvoboda, rsynek, sbiarozk, sclewis, scohen, sdaley, sdouglas, slinaber, smaestri, sokeeffe, sponnaga, stewardship-sig, sthorger, swoodman, tom.jenkinson
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	jackson-databind 2.9.10.6	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in FasterXML jackson-databind 2.x in versions prior to 2.9.10.6. The interaction between serialization gadgets and typing are mishandled. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-28 10:13:45 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1953312, 1873156, 1873157, 1873939, 1873940, 1876809
Bug Blocks:	1872712

Description Michael Kaplan 2020-08-26 13:25:39 UTC

FasterXML jackson-databind 2.x before 2.9.10.6 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPDataSource (aka Anteros-DBCP).

Comment 3 Ted Jongseok Won 2020-08-27 00:35:00 UTC

This vulnerability is out of security support scope for the following products:
 * Red Hat Enterprise Application Platform 6
 * Red Hat JBoss BPMS 6
 * Red Hat JBoss BRMS 6
 * Red Hat JBoss Data Virtualization 6
 * Red Hat Data Grid 6
 * Red Hat JBoss Fuse 6
 * Red Hat JBoss AMQ 6

Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details.

Comment 34 Ted Jongseok Won 2020-10-14 05:40:36 UTC

Mitigation:

The following conditions are needed for an exploit, we recommend avoiding all if possible:
* Deserialization from sources you do not control
* `enableDefaultTyping()`
* `@JsonTypeInfo using `id.CLASS` or `id.MINIMAL_CLASS`
* avoid br.com.anteros.dbcp in the classpath

Comment 35 Ted Jongseok Won 2020-10-14 19:47:42 UTC

Statement:

The Red Hat JBoss Enterprise Application Platform 7 does ship the vulnerable component but has a mandatory whitelist which blocks all wicked serializing classes and does not enable the unsafe conditions needed to exploit.

While OpenShift Container Platform's elasticsearch plugins do ship the vulnerable component, it doesn't do any of the unsafe things described in https://access.redhat.com/solutions/3279231. We may update the jackson-databind dependency in a future release.

The PKI module as shipped in Red Hat Enterprise Linux 8 and Red Hat Satellite 6 does not enable polymorphic deserialization which is a required configuration for the vulnerability to be used, lowering the impact of the vulnerability for the Product. We may update the jackson-databind dependency in a future release.

Red Hat OpenStack Platform ships OpenDaylight, which contains the vulnerable jackson-databind. However, OpenDaylight does not expose jackson-databind in a way that would make it vulnerable, lowering the impact of the vulnerability for OpenDaylight. As such, Red Hat will not be providing a fix for OpenDaylight at this time.