| GEN:SID | 1:2263 |
| Message | SMTP SAML FROM sendmail prescan too many addresses overflow |
| Summary | This event is generated when an attempt is made to exploit a known vulnerability in versions of Sendmail.
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| Impact | Remote arbitrary code execution.
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| Detailed Information | A vulnerability exists in the prescan() function used in Sendmail prior to version 8.12.9. This function contains an error when converting a character to an integer value while processing SMTP headers.
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| Affected Systems | All systems using Sendmail.
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| Attack Scenarios | An attacker could exploit this condition to process code of their choosing and open a listening shell bound to a high port, thus opening the system to further compromise.
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| Ease of Attack | Simple. Exploit code exists.
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| Corrective Action | Upgrade Sendmail to the latest non-affected verison.
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| Additional References | CERT: http://www.cert.org/advisories/CA-2003-07.html
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| Rule References | bugtraq: 6991
cve: 2002-1337
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