Vulnerability-Lookup

RHSA-2009:1470

Vulnerability from csaf_redhat - Published: 2009-09-30 15:08 - Updated: 2026-06-25 10:36

Summary

Red Hat Security Advisory: openssh security update

Severity

Moderate

Notes

Topic: Updated openssh packages that fix a security issue are now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Details: OpenSSH is OpenBSD's SSH (Secure Shell) protocol implementation. These packages include the core files necessary for both the OpenSSH client and server. A Red Hat specific patch used in the openssh packages as shipped in Red Hat Enterprise Linux 5.4 (RHSA-2009:1287) loosened certain ownership requirements for directories used as arguments for the ChrootDirectory configuration options. A malicious user that also has or previously had non-chroot shell access to a system could possibly use this flaw to escalate their privileges and run commands as any system user. (CVE-2009-2904) All OpenSSH users are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing this update, the OpenSSH server daemon (sshd) will be restarted automatically.

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-2009-2904

A certain Red Hat modification to the ChrootDirectory feature in OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise Linux (RHEL) 5.4 and Fedora 11, allows local users to gain privileges via hard links to setuid programs that use configuration files within the chroot directory, related to requirements for directory ownership.

6.2 ()


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

Affected products

Fixed 37 products

Product	Version	Remediation
Unresolved product id: 5Client:openssh-0:4.3p2-36.el5_4.2.i386	—	Vendor Fix fix
Unresolved product id: 5Client:openssh-0:4.3p2-36.el5_4.2.src	—	Vendor Fix fix
Unresolved product id: 5Client:openssh-0:4.3p2-36.el5_4.2.x86_64	—	Vendor Fix fix
Unresolved product id: 5Client:openssh-askpass-0:4.3p2-36.el5_4.2.i386	—	Vendor Fix fix
Unresolved product id: 5Client:openssh-askpass-0:4.3p2-36.el5_4.2.x86_64	—	Vendor Fix fix
Unresolved product id: 5Client:openssh-clients-0:4.3p2-36.el5_4.2.i386	—	Vendor Fix fix
Unresolved product id: 5Client:openssh-clients-0:4.3p2-36.el5_4.2.x86_64	—	Vendor Fix fix
Unresolved product id: 5Client:openssh-debuginfo-0:4.3p2-36.el5_4.2.i386	—	Vendor Fix fix
Unresolved product id: 5Client:openssh-debuginfo-0:4.3p2-36.el5_4.2.x86_64	—	Vendor Fix fix
Unresolved product id: 5Client:openssh-server-0:4.3p2-36.el5_4.2.i386	—	Vendor Fix fix
Unresolved product id: 5Client:openssh-server-0:4.3p2-36.el5_4.2.x86_64	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-0:4.3p2-36.el5_4.2.i386	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-0:4.3p2-36.el5_4.2.ia64	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-0:4.3p2-36.el5_4.2.ppc	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-0:4.3p2-36.el5_4.2.s390x	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-0:4.3p2-36.el5_4.2.src	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-0:4.3p2-36.el5_4.2.x86_64	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-askpass-0:4.3p2-36.el5_4.2.i386	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-askpass-0:4.3p2-36.el5_4.2.ia64	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-askpass-0:4.3p2-36.el5_4.2.ppc	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-askpass-0:4.3p2-36.el5_4.2.s390x	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-askpass-0:4.3p2-36.el5_4.2.x86_64	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-clients-0:4.3p2-36.el5_4.2.i386	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-clients-0:4.3p2-36.el5_4.2.ia64	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-clients-0:4.3p2-36.el5_4.2.ppc	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-clients-0:4.3p2-36.el5_4.2.s390x	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-clients-0:4.3p2-36.el5_4.2.x86_64	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-debuginfo-0:4.3p2-36.el5_4.2.i386	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-debuginfo-0:4.3p2-36.el5_4.2.ia64	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-debuginfo-0:4.3p2-36.el5_4.2.ppc	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-debuginfo-0:4.3p2-36.el5_4.2.s390x	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-debuginfo-0:4.3p2-36.el5_4.2.x86_64	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-server-0:4.3p2-36.el5_4.2.i386	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-server-0:4.3p2-36.el5_4.2.ia64	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-server-0:4.3p2-36.el5_4.2.ppc	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-server-0:4.3p2-36.el5_4.2.s390x	—	Vendor Fix fix
Unresolved product id: 5Server:openssh-server-0:4.3p2-36.el5_4.2.x86_64	—	Vendor Fix fix

Threats

Impact Moderate

References

8 references

URL	Category
https://access.redhat.com/errata/RHSA-2009:1470	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=522141	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2009-2904	self
https://bugzilla.redhat.com/show_bug.cgi?id=522141	external
https://www.cve.org/CVERecord?id=CVE-2009-2904	external
https://nvd.nist.gov/vuln/detail/CVE-2009-2904	external

JSON

To clipboard

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          "text": "A certain Red Hat modification to the ChrootDirectory feature in OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise Linux (RHEL) 5.4 and Fedora 11, allows local users to gain privileges via hard links to setuid programs that use configuration files within the chroot directory, related to requirements for directory ownership.",
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2009-2904"
        },
        {
          "category": "external",
          "summary": "RHBZ#522141",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=522141"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2009-2904",
          "url": "https://www.cve.org/CVERecord?id=CVE-2009-2904"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2009-2904",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2009-2904"
        }
      ],
      "release_date": "2009-09-30T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2009-09-30T15:08:00+00:00",
          "details": "Before applying this update, make sure that all previously-released\nerrata relevant to your system have been applied.\n\nThis update is available via Red Hat Network.  Details on how to use\nthe Red Hat Network to apply this update are available at\nhttp://kbase.redhat.com/faq/docs/DOC-11259",
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          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2009:1470"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "HIGH",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.2,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "openssh: possible privilege escalation when using ChrootDirectory setting"
    }
  ]
}

CVE-2009-2904 (GCVE-0-2009-2904)

Vulnerability from cvelistv5 – Published: 2009-10-01 15:00 – Updated: 2024-08-07 06:07

Summary

Severity

No CVSS data available.

CWE

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1086 records in the last 180 days details

References

11 references

URL	Tags
http://secunia.com/advisories/38794	third-party-advisoryx_refsource_SECUNIA
http://lists.vmware.com/pipermail/security-announ…	mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/36552	vdb-entryx_refsource_BID
https://rhn.redhat.com/errata/RHSA-2009-1470.html	vendor-advisoryx_refsource_REDHAT
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://secunia.com/advisories/38834	third-party-advisoryx_refsource_SECUNIA
http://osvdb.org/58495	vdb-entryx_refsource_OSVDB
http://secunia.com/advisories/39182	third-party-advisoryx_refsource_SECUNIA
https://oval.cisecurity.org/repository/search/def…	vdb-entrysignaturex_refsource_OVAL
https://bugzilla.redhat.com/show_bug.cgi?id=522141	x_refsource_CONFIRM
http://www.vupen.com/english/advisories/2010/0528	vdb-entryx_refsource_VUPEN

Date Public

2009-09-30 00:00

Show details on NVD website

JSON

To clipboard

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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

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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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