Overview
- Description
- The STARTTLS implementation in mail/ngx_mail_smtp_handler.c in the SMTP proxy in nginx 1.5.x and 1.6.x before 1.6.1 and 1.7.x before 1.7.4 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.
- Source
- secalert@redhat.com
- NVD status
- Analyzed
Risk scores
CVSS 2.0
- Type
- Primary
- Base score
- 6.8
- Impact score
- 6.4
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-77
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "091FA427-14F1-480B-9AF7-BEDE2B95F554",
"versionEndExcluding": "1.6.1",
"versionStartIncluding": "1.5.6"
},
{
"criteria": "cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E907E772-8057-4A01-97E5-B930769CFAD2",
"versionEndExcluding": "1.7.4",
"versionStartIncluding": "1.7.0"
}
],
"operator": "OR"
}
]
}
]