Medium

CSV Injection in PSFTPd 10.0.4 Build 729

IdentifiersCVE-2017-15270CWE-116

PSFTPd 10.0.4 Build 729 fails to properly escape special characters (such as '"', ',', and '\r') when writing data to CSV log files. This allows attackers to inject maliciously crafted data into the logs, which can manipulate the structure of the CSV file and potentially hide data or create arbitrary entries in the GUI log view.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Attackers can manipulate the CSV log files by injecting special characters, potentially hiding their activities or creating misleading log entries. If the CSV files are later opened in spreadsheet software, this could also lead to CSV injection attacks, such as the execution of arbitrary commands or scripts, depending on the software used to view the logs.

Mitigation

If you can’t patch tonight, do this now.

As a temporary mitigation, restrict access to the log files and avoid opening them in spreadsheet software that can interpret formulas or scripts. Manually review and sanitize log entries before viewing them in such software.

Remediation

Patch, then assume compromise.

Update PSFTPd to a version that properly escapes all special characters when writing to CSV files. Ensure that all user-supplied data is sanitized before being logged.

PUBLIC EXPLOITS

Exploits

No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.

VALID 0 / 1 TOTALView more in app

All candidate exploits were filtered out by Mallory's validation.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

PsftpPsftpdapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

No public activity tracked yet. Mallory keeps watching.

0 SOURCESView more in app

No public activity observed for this vulnerability.

What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity