krb5-appl: ftpd incorrect group privilege dropping (MITKRB5-SA-2011-005)
Published Jul 11, 2011
6.5
MEDIUMCVSS 2.0
EPSS 3.94%
Description
ftpd.c in the GSS-API FTP daemon in MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.1 and earlier does not check the krb5_setegid return value, which allows remote authenticated users to bypass intended group access restrictions, and create, overwrite, delete, or read files, via standard FTP commands, related to missing autoconf tests in a configure script.
Affected products
No data.
Configuration 2
- 5.0
- 6.0
Configuration 3
- 14
- 15
Configuration 4
- 11.3
- 11.4
- 10
- 11
- 10
- 10
- 10
- 11
- 11
- 10
- 11
No data.
Red Hat Enterprise Linux 5
krb5-0:1.6.1-70.el5
Fixed · RHSA-2012:0306
Red Hat Enterprise Linux 6
krb5-appl-0:1.0.1-2.el6_1.1
Fixed · RHSA-2011:0920
Red Hat Enterprise Linux 4
krb5
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | krb5-0:1.6.1-70.el5 | Fixed | RHSA-2012:0306 |
| Red Hat Enterprise Linux 6 | krb5-appl-0:1.0.1-2.el6_1.1 | Fixed | RHSA-2011:0920 |
| Red Hat Enterprise Linux 4 | krb5 | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue was addressed in krb5-appl packages in Red Hat Enterprise Linux 6 via RHSA-2011:0920 and krb5 packages in Red Hat Enterprise Linux 5 via RHSA-2012:0306. This issue is not planned to be addressed in Red Hat Enterprise Linux 4, where this issue was rated as having low security impact.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.94% (0.03938) | 90.06th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.94% (0.03938) | 89.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.29% (0.00288) | 50.15th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.35% (0.00353) | 72.81th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.35% (0.00353) | 71.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.35% (0.00353) | 67.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.53% (0.02528) | 81.92th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.53% (0.02528) | 80.15th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.53% (0.02528) | 58.66th | v2 (v2022.01.01) |
References (25)
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062681.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062699.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-10/msg00009.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00002.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00004.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00005.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00011.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00014.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://secunia.com/advisories/45145 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/45157 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/48101 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://securityreason.com/securityalert/8301 third-party-advisoryx_refsource_SREASONThird Party Advisory
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-005.txt x_refsource_CONFIRMPatchVendor Advisory
- http://www.debian.org/security/2011/dsa-2283 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:117 vendor-advisoryx_refsource_MANDRIVAThird Party Advisory
- http://www.osvdb.org/73617 vdb-entryx_refsource_OSVDBBroken Link
- http://www.redhat.com/support/errata/RHSA-2011-0920.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.securityfocus.com/archive/1/518733/100/0/threaded mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/48571 vdb-entryx_refsource_BIDPatchThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2011-1526 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=711419 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68398 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2011-1526
- https://www.cve.org/CVERecord?id=CVE-2011-1526
Change history (0)
No recorded changes yet.