ProFTPD mod_sftp Signed Integer Overflow via SCP Size-Record Parser
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| proftpd | proftpd | affected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions | ||||||||||||
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| Proftpd | Proftpd |
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No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.525% probability within 30 days)
| Type | Values Removed | Values Added |
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| CPEs | cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:* |
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| First Time appeared |
Proftpd
Proftpd proftpd |
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| Vendors & Products |
Proftpd
Proftpd proftpd |
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| Metrics |
ssvc
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| Description | ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the mod_sftp module's SCP size-record parser that allows authenticated low-privilege attackers to bypass ASLR by sending a crafted file size value of UINT64_MAX, which results in a negative off_t value. Attackers can exploit the subsequent conversion to uint32_t, causing an approximately 4 GB requested read length and forcing the server to read beyond the end of the SSH channel data and write overread process memory into the uploaded file. In tested configurations, the disclosed data contains libc, libcrypto, and PIE pointers sufficient to derive their randomized base addresses, thereby bypassing ASLR and enabling reliable exploitation of memory corruption vulnerabilities in the same process. | |
| Title | ProFTPD mod_sftp Signed Integer Overflow via SCP Size-Record Parser | |
| Weaknesses | CWE-126 CWE-190 |
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| References |
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| Metrics |
cvssV3_1
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