Vulnerability-Lookup

RHSA-2012_1379

Vulnerability from csaf_redhat - Published: 2012-10-16 17:44 - Updated: 2024-11-22 06:02

Summary

Red Hat Security Advisory: openstack-swift security update

Severity

Important

Notes

Topic: Updated openstack-swift packages that fix one security issue are now available for Red Hat OpenStack Essex. The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Details: OpenStack Swift (http://swift.openstack.org) is a highly available, distributed, eventually consistent object/blob store. It was found that OpenStack Swift used the Python pickle module in an insecure way to serialize and deserialize data from memcached. As memcached does not have authentication, an attacker on the local network, or possibly an unprivileged user in a virtual machine hosted on OpenStack, could use this flaw to inject specially-crafted data that would lead to arbitrary code execution. (CVE-2012-4406) Red Hat would like to thank Sebastian Krahmer of the SUSE Security Team for reporting this issue. Note: The fix for CVE-2012-4406 is not enabled by default, and requires manual action on the affected Proxy nodes. This update adds a "memcache_serialization_support" option. It is configured in "/etc/swift/proxy-server.conf" and is set to "0" by default. This default setting is vulnerable to CVE-2012-4406. To enable the fix, this option must be changed; however, the required changes can have a temporary, large performance impact. The following instructions aim to minimize performance issues: 1) Install the updated openstack-swift packages. 2) In "/etc/swift/proxy-server.conf", set the "memcache_serialization_support" option in the memcache/[filter:cache] section to "1". (The default value, "0", leaves you vulnerable to CVE-2012-4406.) When set to "1", the JSON (JavaScript Object Notation) format is used but pickle is still supported. This configuration is still vulnerable, but new data will be stored in JSON format. 3) After setting the option to "1", run "service openstack-swift-proxy restart". 4) After 24 hours, set the "memcache_serialization_support" option in "/etc/swift/proxy-server.conf" to "2". "2" is the secure option: only JSON is used. 5) After setting the option to "2", run "service openstack-swift-proxy restart". If "memcache_serialization_support" is set directly from "0" to "2", all data in memcached will be flushed and re-created. This can lead to a temporary, large performance impact. All users of openstack-swift are advised to upgrade to these updated packages, which correct this issue.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2012-4406

OpenStack Object Storage (swift) before 1.7.0 uses the loads function in the pickle Python module unsafely when storing and loading metadata in memcached, which allows remote attackers to execute arbitrary code via a crafted pickle object.

7.5 ()


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

CWE-502 - Deserialization of Untrusted Data

Affected products

Fixed 7 products

Product	Version	Remediation
Unresolved product id: 6Server-Essex:openstack-swift-0:1.4.8-5.el6.noarch	—	Vendor Fix fix
Unresolved product id: 6Server-Essex:openstack-swift-0:1.4.8-5.el6.src	—	Vendor Fix fix
Unresolved product id: 6Server-Essex:openstack-swift-account-0:1.4.8-5.el6.noarch	—	Vendor Fix fix
Unresolved product id: 6Server-Essex:openstack-swift-container-0:1.4.8-5.el6.noarch	—	Vendor Fix fix
Unresolved product id: 6Server-Essex:openstack-swift-doc-0:1.4.8-5.el6.noarch	—	Vendor Fix fix
Unresolved product id: 6Server-Essex:openstack-swift-object-0:1.4.8-5.el6.noarch	—	Vendor Fix fix
Unresolved product id: 6Server-Essex:openstack-swift-proxy-0:1.4.8-5.el6.noarch	—	Vendor Fix fix

Threats

Impact Important

References

8 references

URL	Category
https://access.redhat.com/errata/RHSA-2012:1379	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=854757	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2012-4406	self
https://bugzilla.redhat.com/show_bug.cgi?id=854757	external
https://www.cve.org/CVERecord?id=CVE-2012-4406	external
https://nvd.nist.gov/vuln/detail/CVE-2012-4406	external

Acknowledgments

SUSE Security Team Sebastian Krahmer

JSON

To clipboard

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          "title": "Vulnerability summary"
        },
        {
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          "title": "CVSS score applicability"
        }
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}

CVE-2012-4406 (GCVE-0-2012-4406)

Vulnerability from cvelistv5 – Published: 2012-10-22 23:00 – Updated: 2024-08-06 20:35

Summary

Severity

No CVSS data available.

CWE

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1046 records in the last 180 days details

References

11 references

URL	Tags
https://github.com/openstack/swift/commit/e1ff51c…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/55420	vdb-entryx_refsource_BID
https://launchpad.net/swift/+milestone/1.7.0	x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2012-1379.html	vendor-advisoryx_refsource_REDHAT
https://exchange.xforce.ibmcloud.com/vulnerabilit…	vdb-entryx_refsource_XF
https://bugs.launchpad.net/swift/+bug/1006414	x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=854757	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2012/09/05/4	mailing-listx_refsource_MLIST
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://rhn.redhat.com/errata/RHSA-2013-0691.html	vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2012/0…	mailing-listx_refsource_MLIST

Date Public

2012-06-28 00:00

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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