Graph/ac529dbd-6cc5-4437-a40d-ddf230156013

Domainunvalidated

System Security

ac529dbd-6cc5-4437-a40d-ddf230156013

System Security

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Updated5/1/2026

PageRank0.0017

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Ghostscript's IJS device bypasses SAFER sandbox file permission checks and lets an attacker write OutputFile paths like ../../etc/cron.d/backdoor

RELATES_TOComponent

bash

RELATES_TORootCause

use of sprintf at lines 95,101,107,126,127 and strcpy at 135 — Read mailstat.c around lines 54-159. Tension: the earlier sprintf(file, "%s/", dir) and sprintf(dir, "%s/%s", ...) do not bound writes against sizeof(dir)/sizeof(file). Outcome: strlen(path) > sizeof(dir)-5 is insufficient for the multiple sprintf patterns.

RELATES_TOSolution

Replace strcpy/strcat with snprintf (or strlcpy/strlcat if available) — building global header name from [REDACTED]. Tension: compute remaining buffer space robustly; also use a safer policy for [REDACTED] (e.g., cap length). Outcome: Add overflow checks when computing allocation size.

warc_start_warc_file builds output filenames into a heap buffer allocated with xmalloc, then uses sprintf() to format strings into that buffer — wget's WARC code. Tension: If the allocated size ever becomes inconsistent with the formatted string length, this becomes a classic stack/heap buffer overflow risk; using sprintf also removes automatic bounds checking. Outcome: using sprintf also removes automatic bounds checking.

binutils insecure temp creation uses mktemp() fallback

PERTAIN_TOSolution

Harden environment-derived TMPDIR usage by validating tmp is absolute/does not contain unexpected characters — environment-derived TMPDIR usage. Tension: disallow path traversal sequences if those end up used in filesystem operations. Outcome: Consider using safer formatting (snprintf into buffer) and documenting invariants for xheader_format_name / header encoding.

PERTAIN_TOPackage

binutils

PERTAIN_TORootCause

label_number and instance_number are parsed from digits in the input label name — decode_local_label_name(). Tension: their decimal string lengths are not bounded by the +30 constant. Outcome: sprintf(symbol_decode, message_format, label_number, instance_number, type).

PERTAIN_TOReport

tar: possible command injection cluster via TMPDIR-based global header name composition

PERTAIN_TOPackage

os

PERTAIN_TOReport

GNU tar src/tar.c optloc_save uses strcpy into freshly allocated buffer without explicit bound/cap

PERTAIN_TOProblem

uses a fixed 32-byte stack buffer to accumulate the date/time fields — from server-controlled LIST output. Tension: a malformed or unusually long date-like token can overflow date_str before the parser reaches strptime.

PERTAIN_TOReport

wget: stack buffer overflow risk in [redacted:auth-header] via sprintf+alloca

PERTAIN_TOReport

wget ftp VMS listing parsing can overflow fixed stack buffer in ftp_parse_vms_ls via strcpy

PERTAIN_TOReport

wget src/ftp-ls.c: VMS listing [REDACTED] stack overflow via strcpy

PERTAIN_TOReport

In src/[REDACTED], [REDACTED] copies VMS listing tokens into a fixed-size stack buffer [REDACTED] using strcpy()/strcat() without enforcing bounds. An attacker controlling the contents of an FTP LIST response (written to a local file and then parsed) can supply an oversized date token and trigger a stack-based buffer overflow.

PERTAIN_TOReport

In [REDACTED], [REDACTED] appends byte ranges to an in-memory log. It uses end[-1] to compute whether the last byte is a newline, but does not validate that the end pointer is non-NULL and refers to at least one valid byte within the original buffer. If callers pass an invalid end pointer or a zero-length/unterminated range despite len>0, end[-1] can read out of bounds, leading to a crash or information disclosure.

PERTAIN_TOSolution

Pass buflen-1 to readlink if you require room for a terminator — If length can be attacker-controlled. Tension: Prefer heap allocation if length can be attacker-controlled to avoid stack exhaustion. Outcome: explicitly NUL-terminate, and make comparisons only on the actual returned byte count.

PERTAIN_TOReport

wget vms_getpwuid-like function uses unchecked strcpy into fixed buffers (potential overflow)

PERTAIN_TOReport

tar: potential heap overflow in lib/wordsplit.c env var construction using strcpy

PERTAIN_TOSolution

Use a real sandboxing mechanism (e.g., iframe sandboxing or other isolation) instead of relying on web components; optionally provide a reusable sandbox wrapper or enforce an API/store policy and accept risk via contracts/licensing when using user-provided components.

PERTAIN_TOProblem

I need a way to sandbox the code and limit its permissions. — dynamically loading and executing third-party code. Outcome: there are (currently) no alternatives for running untrusted Java code within a Java application.

PERTAIN_TOSolution

Untrusted Javascript can be run safely in a typical web browser. — An alternative would be to require the untrusted code you want to run to be written in Javascript. Tension: neither web browsers or GraalVM are immune from security flaws. Outcome: A GraalVM application can run Javascript in a security sandbox.

PERTAIN_TOProblem

Is it a good idea to make a call to the authorization service for every request? — a "one-per-request" filter to the main service. Tension: to call the authorization service, check the JWT, and get user information from it. Outcome: in the future, to all other services.

PERTAIN_TOProblem

How can I get the authenticated user in the main service? Tension: In a monolithic application, I would save it in the SecurityContextHolder in a "one-per-request" filter. Outcome: Should I add a "one-per-request" filter to the main service.

PERTAIN_TOProblem

there is an endpoint in the main service that needs to be secured not only by a valid JWT — in the main service. Tension: but also by the roles that the authenticated user has. Outcome: configure secured endpoints for each service?

PERTAIN_TOSolution

the information about the user is inside the JWT — other services does not need to call the authorization service or database. Tension: this token is signed from the authorization service but other services does not need to call the authorization service or database. Outcome: they only need a shared secret they use to check the validity of the token.

PERTAIN_TOProblem

Tension: Can this connection still be considered Mode 1 Level 4 aka. SCO? Outcome: it is not an authenticated pairing, therefore it does not fulfilll the requirements for being mode 1 level 4.

PERTAIN_TOSolution

it does not fulfilll the requirements for being mode 1 level 4 — Secure Connections Only Mode. Tension: JustWorks Unauthenticated will be used. Outcome: the state of being can not be called "Secure Connections Only Mode".

PERTAIN_TOProblem

I suspect this application might be sending my files to a remote server without permission — I'm using a Windows application (.exe) written in Python to manipulate files in a folder. Outcome: The application is supposed to be offline.

PERTAIN_TOSolution

use Process Monitor of the Sysinternals suite — on Windows. Tension: set up a filter to only display network events from your target executable. Outcome: `netstat -bn 1`.

PERTAIN_TOProblem

I need to create custom roles with specific permissions in Apache Airflow. — I have a dictionary that contains the role names and their corresponding permissions. Outcome: Could someone provide an example or guide me on how to create these custom roles with the permissions defined in the dictionary?

PERTAIN_TOSolution

create custom roles with specific permissions in Apache Airflow. Tension: not entirely sure how to use it to create these custom roles programmatically. Outcome: an example or guide me on how to create these custom roles with the permissions defined in the dictionary.

PERTAIN_TOProblem

I get the variables, for example `text`, directly from the user. Tension: could allow the user to execute malicious code. Outcome: I have rewritten the code to this:.

PERTAIN_TOSolution

Tension: The `subprocess.run` command, as opposed to `os.system`, doesn't allow for arbitrary shell execution. Outcome: process = subprocess.run(cmd + args, check=True).

PERTAIN_TORootCause

NCryptSetProperty expects a SECURITY_DESCRIPTOR, not SECURITY_ATTRIBUTES

PERTAIN_TOProblem

I get the error: "The security descriptor structure is invalid" — I'm trying to create a key in the TPM with the help of the NCrypt library and restrict the access to only my application in C++.

PERTAIN_TOSolution

Tension: the size grows as you add entries to the control access list of the security descriptor.

PERTAIN_TOProblem

does not work when I follow the instructions — Solr 9.5 standalone.

PERTAIN_TOSolution

Finally succe. Follow the instructions provided in the Apache Solr official documentation for setting up the Basic Authentication Plugin. — Create a security.json file and populate it with the provided JSON configuration. Outcome: Once the security.json is properly set up, start Solr and access it via the web interface.

PERTAIN_TOProblem

SonarCloud raises javasecurity:S2083 because the code constructs a File/FileInputStream path using user-influenced data, which could enable path traversal/path injection (e.g., using ../).

PERTAIN_TOSolution

Build the target path using Path APIs from a fixed base directory (e.g., parentPath.resolve(...)), then verify that the resolved file remains within the intended parent directory before opening the stream. Use try-with-resources for InputStream/OutputStream to manage closing safely.

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