CVE-2011-2666
Published Jul 6, 2011
CVSS 2.0 · 5.0 Medium
EPSS 1.3%
KEV · Not listed
Description
The default configuration of the SIP channel driver in Asterisk Open Source 1.4.x through 1.4.41.2 and 1.6.2.x through 1.6.2.18.2 does not enable the alwaysauthreject option, which allows remote attackers to enumerate account names by making a series of invalid SIP requests and observing the differences in the responses for different usernames, a different vulnerability than CVE-2011-2536.
Affected Products
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CVE record
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NVD configurations
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Red Hat packages
No data
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OpenCVE enrichment
No data
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | n/a | affected |
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Configuration 1 [-]
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Configuration 2 [-]
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No data.
No data available yet.
Remediation
Tracking
Advisories
| Source | ID | Title |
|---|---|---|
 Debian DSA |
DSA-2493-1 | asterisk security update |
 EUVD |
EUVD-2011-2649 | The default configuration of the SIP channel driver in Asterisk Open Source 1.4.x through 1.4.41.2 and 1.6.2.x through 1.6.2.18.2 does not enable the alwaysauthreject option, which allows remote attackers to enumerate account names by making a series of invalid SIP requests and observing the differences in the responses for different usernames, a different vulnerability than CVE-2011-2536. |
Metrics
No CVSS v4.0
No CVSS v3.1
No CVSS v3.0
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
Exploit prediction score: 1.3% (1.329% probability within 30 days)
Key SSVC decision points have not yet been added.
References
History
No history.
Weaknesses
