Asterisk Open Source 1.2.x before 1.2.26 and 1.4.x before 1.4.16, and Business Edition B.x.x before B.2.3.6 and C.x.x before C.1.0-beta8, when using database-based registrations ("realtime") and host-based authentication, does not check the IP address when the username is correct and there is no password, which allows remote attackers to bypass authentication using a valid username
Published Dec 20, 2007
4.3
MEDIUMCVSS 2.0
EPSS 1.95%
Description
Asterisk Open Source 1.2.x before 1.2.26 and 1.4.x before 1.4.16, and Business Edition B.x.x before B.2.3.6 and C.x.x before C.1.0-beta8, when using database-based registrations ("realtime") and host-based authentication, does not check the IP address when the username is correct and there is no password, which allows remote attackers to bypass authentication using a valid username.
Affected products
No data.
- b.1.3.2
- b.1.3.3
- b.2.2.0
- b.2.2.1
- b.2.3.1
- b.2.3.2
- b.2.3.3
- b.2.3.4
- c.1.0beta7
- 1.2.0beta1
- 1.2.0beta2
- 1.2.5
- 1.2.6
- 1.2.7
- 1.2.8
- 1.2.9
- 1.2.10
- 1.2.11
- 1.2.13
- 1.2.14
- 1.2.15
- 1.2.16
- 1.2.17
- 1.2.18
- 1.2.19
- 1.2.21
- 1.2.22
- 1.2.23
- 1.2.24
- 1.2.25
- 1.4.1
- 1.4.2
- 1.4.3
- 1.4.4
- 1.4.5
- 1.4.6
- 1.4.7
- 1.4.8
- 1.4.9
- 1.4.10
- 1.4.11
- 1.4.12
- 1.4.13
- 1.4.14
- 1.4.15
- 1.4beta
No data.
No Red Hat product state for this CVE.
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:M/Au:N/C:P/I:N/A:N
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.95% (0.01951) | 79.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.95% (0.01951) | 77.54th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.27% (0.00275) | 48.95th | v4 (v2025.03.14) |
| Feb 14, 2025 | 89.74% (0.89745) | 99.07th | v3 (v2023.03.01) |
| Jan 7, 2025 | 93.19% (0.93188) | 99.29th | v3 (v2023.03.01) |
| Dec 17, 2024 | 90.96% (0.90958) | 99.11th | v3 (v2023.03.01) |
| Nov 30, 2024 | 15.31% (0.15310) | 96.05th | v3 (v2023.03.01) |
| Oct 23, 2024 | 3.02% (0.03024) | 91.19th | v3 (v2023.03.01) |
| May 23, 2024 | 0.97% (0.00973) | 83.37th | v3 (v2023.03.01) |
| Apr 15, 2024 | 0.60% (0.00602) | 78.20th | v3 (v2023.03.01) |
| Mar 10, 2024 | 0.65% (0.00654) | 78.94th | v3 (v2023.03.01) |
| Dec 25, 2023 | 0.64% (0.00642) | 76.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.59% (0.00593) | 75.00th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (15)
- http://downloads.digium.com/pub/security/AST-2007-027.html x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/28149 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/29242 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/29456 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/29782 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200804-13.xml vendor-advisoryx_refsource_GENTOO
- http://securityreason.com/securityalert/3467 third-party-advisoryx_refsource_SREASON
- http://www.debian.org/security/2008/dsa-1525 vendor-advisoryx_refsource_DEBIAN
- http://www.osvdb.org/39519 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/archive/1/485287/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/26928 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1019110 vdb-entryx_refsource_SECTRACKVendor Advisory
- http://www.vupen.com/english/advisories/2007/4260 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/39124 vdb-entryx_refsource_XF
Change history (0)
No recorded changes yet.