The design of the dialplan functionality in Asterisk Open Source 1.2.x, 1.4.x, and 1.6.x; and Asterisk Business Edition B.x.x and C.x.x, when using the ${EXTEN} channel variable and wildcard pattern matches, allows context-dependent attackers to inject strings into the dialplan using metacharacters that are injected when the variable is expanded, as demonstrated using the Dial application to process a crafted SIP INVITE message that adds an unintended outgoing channel leg
Published Feb 23, 2010
5.0
MEDIUMCVSS 2.0
EPSS 1.37%
Description
The design of the dialplan functionality in Asterisk Open Source 1.2.x, 1.4.x, and 1.6.x; and Asterisk Business Edition B.x.x and C.x.x, when using the ${EXTEN} channel variable and wildcard pattern matches, allows context-dependent attackers to inject strings into the dialplan using metacharacters that are injected when the variable is expanded, as demonstrated using the Dial application to process a crafted SIP INVITE message that adds an unintended outgoing channel leg. NOTE: it could be argued that this is not a vulnerability in Asterisk, but a class of vulnerabilities that can occur in any program that uses this feature without the associated filtering functionality that is already available.
Affected products
No data.
Configuration 1
- 1.2.0
- 1.2.0
- 1.2.0
- 1.2.0
- 1.2.0
- 1.2.1
- 1.2.2
- 1.2.2
- 1.2.3
- 1.2.3
- 1.2.6
- 1.2.7
- 1.2.8
- 1.2.9
- 1.2.10
- 1.2.10
- 1.2.11
- 1.2.11
- 1.2.12
- 1.2.12
- 1.2.12.1
- 1.2.12.1
- 1.2.13
- 1.2.13
- 1.2.14
- 1.2.15
- 1.2.15
- 1.2.16
- 1.2.16
- 1.2.17
- 1.2.17
- 1.2.18
- 1.2.18
- 1.2.19
- 1.2.19
- 1.2.20
- 1.2.20
- 1.2.21
- 1.2.21
- 1.2.21.1
- 1.2.21.1
- 1.2.22
- 1.2.22
- 1.2.23
- 1.2.23
- 1.2.24
- 1.2.24
- 1.2.25
- 1.2.25
- 1.2.26
- 1.2.26
- 1.2.26.1
- 1.2.26.1
- 1.2.26.2
- 1.2.26.2
- 1.2.27
- 1.2.28
- 1.2.28.1
- 1.2.29
- 1.2.30
- 1.2.30.1
- 1.2.30.2
- 1.2.30.3
- 1.2.30.4
- 1.2.31
- 1.2.31.1
- 1.2.32
- 1.2.33
- 1.2.34
- 1.2.35
- 1.2.36
- 1.4.0
- 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
- 1.4.16
- 1.4.17
- 1.4.18
- 1.4.19
- 1.4.20
- 1.4.21
- 1.4.22
- 1.4.23
- 1.4.24
- 1.4.25
- 1.4.26
- 1.4.27
- 1.6.0
- 1.6.1
Configuration 2
- 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
- b.2.3.5
- b.2.3.6
- b.2.5.0
- b.2.5.1
- b.2.5.2
- b.2.5.3
- c.1.0
- c.1.0
- c.1.6
- c.1.6.1
- c.1.6.2
- c.1.8.0
- c.1.8.1
- c.2.3
- c.3.0
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:L/Au:N/C:N/I:P/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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.37% (0.01370) | 70.91th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.37% (0.01370) | 68.23th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00093) | 24.12th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.92% (0.00922) | 83.60th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.65% (0.00654) | 78.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.65% (0.00654) | 76.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.77% (0.05770) | 90.34th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.77% (0.05770) | 89.40th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.77% (0.05770) | 77.23th | v2 (v2022.01.01) |
No CWE recorded.
References (9)
- http://downloads.digium.com/pub/security/AST-2010-002.html x_refsource_CONFIRMExploitVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html vendor-advisoryx_refsource_FEDORA
- http://secunia.com/advisories/38641 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/39096 third-party-advisoryx_refsource_SECUNIA
- http://svn.asterisk.org/svn/asterisk/branches/1.2/README-SERIOUSLY.bestpractices.txt x_refsource_MISC
- http://www.securityfocus.com/archive/1/509608/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securitytracker.com/id?1023637 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2010/0439 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/56397 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://downloads.digium.com/pub/security/AST-2010-002.html | x_refsource_CONFIRMExploitVendor Advisory | |
| http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html | vendor-advisoryx_refsource_FEDORA | |
| http://secunia.com/advisories/38641 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://secunia.com/advisories/39096 | third-party-advisoryx_refsource_SECUNIA | |
| http://svn.asterisk.org/svn/asterisk/branches/1.2/README-SERIOUSLY.bestpractices.txt | x_refsource_MISC | |
| http://www.securityfocus.com/archive/1/509608/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securitytracker.com/id?1023637 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2010/0439 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/56397 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.