Vulnerability Details : CVE-2020-12651
Potential exploit
SecureCRT before 8.7.2 allows remote attackers to execute arbitrary code via an Integer Overflow and a Buffer Overflow because a banner can trigger a line number to CSI functions that exceeds INT_MAX.
Vulnerability category: OverflowExecute code
Products affected by CVE-2020-12651
- cpe:2.3:a:vandyke:securecrt:*:*:*:*:*:*:*:*
- cpe:2.3:a:vandyke:securecrt:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-12651
14.35%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 94 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-12651
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-12651
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The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-12651
-
https://bugs.chromium.org/p/project-zero/issues/detail?id=2033
2033 - securecrt: memory corruption in CSI functions CVE-2020-12651 - project-zeroExploit;Third Party Advisory
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https://www.vandyke.com/support/advisory/index.html
Security AdvisoriesVendor Advisory
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https://www.vandyke.com/products/securecrt/history.txt
Release Notes;Vendor Advisory
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https://twitter.com/taviso/status/1261079774190919680
Tavis Ormandy on Twitter: "Always enable postmortem debugging... I found this remote memory corruption vulnerability in SecureCRT by accidentally catting a binary 😂" / TwitterThird Party Advisory
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