sssd: allows null password entry to authenticate against LDAP
Published Aug 30, 2010
5.1
MEDIUMCVSS 2.0
EPSS 2.02%
Description
The auth_send function in providers/ldap/ldap_auth.c in System Security Services Daemon (SSSD) 1.3.0, when LDAP authentication and anonymous bind are enabled, allows remote attackers to bypass the authentication requirements of pam_authenticate via an empty password.
Affected products
No data.
- 1.3.0
No data.
Red Hat Enterprise Linux 5
sssd
Affected
Red Hat Enterprise Linux 6
sssd
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | sssd | Affected | n/a |
| Red Hat Enterprise Linux 6 | sssd | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:H/Au:N/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.02% (0.02023) | 80.26th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.06% (0.02062) | 78.80th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.23% (0.00226) | 43.27th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.76% (0.00756) | 81.75th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.76% (0.00756) | 80.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.76% (0.00756) | 78.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (6)
- http://secunia.com/advisories/41159 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- https://access.redhat.com/security/cve/CVE-2010-2940 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=625189 x_refsource_CONFIRMIssue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/61399 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2010-2940
- https://www.cve.org/CVERecord?id=CVE-2010-2940
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/41159 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2010-2940 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=625189 | x_refsource_CONFIRMIssue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/61399 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2010-2940 | ||
| https://www.cve.org/CVERecord?id=CVE-2010-2940 |
Change history (0)
No recorded changes yet.