CVE-2021-3524

unknown

Published — · Modified —

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway) in versions before 14.2.21. The vulnerability is related to the injection of HTTP headers via a CORS ExposeHeader tag. The newline character in the ExposeHeader tag in the CORS configuration file generates a header injection in the response when the CORS request is made. In addition, the prior bug fix for CVE-2020-10753 did not account for the use of \r as a header separator, thus a new flaw has been created.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2021-3524 NameCVE-2021-3524 DescriptionA flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway) in versions before 14.2.21. The vulnerability is related to the injection of HTTP headers via a CORS ExposeHeader tag. The newline character in the ExposeHeader tag in the CORS configuration file generates a header injection in the response when the CORS request is made. In…

CVE-2021-3524

Name	CVE-2021-3524
Description	A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway) in versions before 14.2.21. The vulnerability is related to the injection of HTTP headers via a CORS ExposeHeader tag. The newline character in the ExposeHeader tag in the CORS configuration file generates a header injection in the response when the CORS request is made. In addition, the prior bug fix for CVE-2020-10753 did not account for the use of \r as a header separator, thus a new flaw has been created.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2735-1, DLA-3629-1
Debian Bugs	988889

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ceph (PTS)	bullseye	14.2.21-1	fixed
	bullseye (security)	14.2.21-1+deb11u3	fixed
	bookworm	16.2.15+ds-0+deb12u1	fixed
	bookworm (security)	16.2.15+ds-0+deb12u2	fixed
	trixie	18.2.7+ds-1	fixed
	trixie (security)	18.2.7+ds-1+deb13u1	fixed
	forky, sid	18.2.8+ds-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
ceph	source	stretch	10.2.11-2+deb9u1	DLA-2735-1
ceph	source	buster	12.2.11+dfsg1-2.1+deb10u1	DLA-3629-1
ceph	source	(unstable)	14.2.21-1		988889

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=1951674
Fixed by: https://github.com/ceph/ceph/commit/763aebb94678018f89427137ffbc0c5205b1edc1

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Apply commands

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Notes

https://bugzilla.redhat.com/show_bug.cgi?id=1951674Fixed by: https://github.com/ceph/ceph/commit/763aebb94678018f89427137ffbc0c5205b1edc1

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`14.2.21-1`
sid	Fixed	`14.2.21-1`
forky	Fixed	`14.2.21-1`
bullseye	Fixed	`14.2.21-1`
bookworm	Fixed	`14.2.21-1`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.