Common Weakness Enumeration

CWE-134

Allowed

Use of Externally-Controlled Format String

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product uses a function that accepts a format string as an argument, but the format string originates from an external source.

499 vulnerabilities reference this CWE, most recent first.

CVE-2023-24590 (GCVE-0-2023-24590)

Vulnerability from cvelistv5 – Published: 2023-12-18 22:00 – Updated: 2024-08-02 11:03
VLAI
Summary
A format string issue in the Controller 6000's optional diagnostic web interface can be used to write/read from memory, and in some instances crash the Controller 6000 leading to a Denial of Service. This issue affects: Gallagher Controller 6000 8.60 prior to vCR8.60.231116a (distributed in 8.60.2550 (MR7)), all versions of 8.50 and prior.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
References
Impacted products
Vendor Product Version
Gallagher Controller 6000 Affected: 0 , ≤ 8.50 (custom)
Affected: 8.60 , < 8.60.231116a (custom)
Create a notification for this product.
Credits
Sebastian Toscano of Amazon Security Kevin Schaller of Amazon Security
Show details on NVD website
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CVE-2023-23783 (GCVE-0-2023-23783)

Vulnerability from cvelistv5 – Published: 2023-02-16 18:05 – Updated: 2024-10-23 14:47
VLAI
Summary
A use of externally-controlled format string in Fortinet FortiWeb version 7.0.0 through 7.0.1, FortiWeb 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted command arguments.
Severity
6.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-134 - Execute unauthorized code or commands
Assigner
References
Impacted products
Vendor Product Version
Fortinet FortiWeb Affected: 7.0.0 , ≤ 7.0.1 (semver)
Affected: 6.4.0 , ≤ 6.4.2 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2023-22923 (GCVE-0-2023-22923)

Vulnerability from cvelistv5 – Published: 2023-05-01 00:00 – Updated: 2025-01-30 16:48
VLAI
Summary
A format string vulnerability in a binary of the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker to cause denial-of-service (DoS) conditions on an affected device.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
References
Impacted products
Vendor Product Version
Zyxel NBG-418N v2 firmware Affected: < V1.00(AARP.14)C0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2023-22374 (GCVE-0-2023-22374)

Vulnerability from cvelistv5 – Published: 2023-02-01 17:54 – Updated: 2025-03-26 17:51
VLAI
Title
iControl SOAP vulnerability
Summary
A format string vulnerability exists in iControl SOAP that allows an authenticated attacker to crash the iControl SOAP CGI process or, potentially execute arbitrary code. In appliance mode BIG-IP, a successful exploit of this vulnerability can allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
f5
References
Impacted products
Vendor Product Version
F5 BIG-IP Affected: 17.0.0 , < 17.1.0 (semver)
Affected: 16.1.2.2 , < 16.1.3.4 (semver)
Affected: 15.1.5.1 , < 15.1.8.2 (semver)
Affected: 14.1.4.6 , < 14.1.5.4 (semver)
Affected: 13.1.5 , < * (semver)
Create a notification for this product.
Date Public
2023-02-01 15:00
Credits
F5 acknowledges Ron Bowes of Rapid7 for bringing this issue to our attention and following the highest standards of coordinated disclosure.
Show details on NVD website
To clipboard 

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CVE-2023-21497 (GCVE-0-2023-21497)

Vulnerability from cvelistv5 – Published: 2023-05-04 00:00 – Updated: 2025-02-12 16:18
VLAI
Summary
Use of externally-controlled format string vulnerability in mPOS TUI trustlet prior to SMR May-2023 Release 1 allows local attackers to access the memory address.
Severity
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
References
Impacted products
Vendor Product Version
Samsung Mobile Samsung Mobile Devices Affected: Select Android 13 devices , < SMR May-2023 Release 1 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2023-21420 (GCVE-0-2023-21420)

Vulnerability from cvelistv5 – Published: 2023-02-09 00:00 – Updated: 2025-03-24 18:57
VLAI
Summary
Use of Externally-Controlled Format String vulnerabilities in STST TA prior to SMR Jan-2023 Release 1 allows arbitrary code execution.
Severity
7.3 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
References
Impacted products
Vendor Product Version
Samsung Mobile Samsung Mobile Devices Affected: Q(10), R(11) devices with Teegris , < SMR Jan-2023 Release 1 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2023-6764 (GCVE-0-2023-6764)

Vulnerability from cvelistv5 – Published: 2024-02-20 02:14 – Updated: 2024-08-02 08:42
VLAI
Summary
A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device’s memory layout and configuration.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
References
Impacted products
Vendor Product Version
Zyxel ATP series firmware Affected: version 4.32 through 5.37 Patch 1
Create a notification for this product.
Zyxel USG FLEX series firmware Affected: version 4.50 through 5.37 Patch 1
Create a notification for this product.
Zyxel USG FLEX 50(W) series firmware Affected: version 4.16 through 5.37 Patch 1
Create a notification for this product.
Zyxel USG20(W)-VPN series firmware Affected: version 4.16 through 5.37 Patch 1
Create a notification for this product.
zyxel atp_firmware Affected: 4.32 , ≤ 5.37patch1 (custom)
    cpe:2.3:o:zyxel:atp_firmware:-:*:*:*:*:*:*:*
 Create a notification for this product.
zyxel usg_flex_firmware Affected: 4.50 , ≤ 5.37patch1 (custom)
    cpe:2.3:o:zyxel:usg_flex_firmware:-:*:*:*:*:*:*:*
 Create a notification for this product.
zyxel usg_flex_50w_firmware Affected: 4.16 , ≤ 5.37patch1 (custom)
    cpe:2.3:o:zyxel:usg_flex_50w_firmware:-:*:*:*:*:*:*:*
 Create a notification for this product.
zyxel usg_20w-vpn_firmware Affected: 4.16 , ≤ 5.37patch1 (custom)
    cpe:2.3:o:zyxel:usg_20w-vpn_firmware:-:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2023-6399 (GCVE-0-2023-6399)

Vulnerability from cvelistv5 – Published: 2024-02-20 01:42 – Updated: 2024-08-02 08:28
VLAI
Summary
A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1, and USG FLEX H series firmware versions from 1.10 through 1.10 Patch 1 could allow an authenticated IPSec VPN user to cause DoS conditions against the “deviceid” daemon by sending a crafted hostname to an affected device if it has the “Device Insight” feature enabled.
Severity
5.7 (Medium)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
References
Impacted products
Vendor Product Version
Zyxel ATP series firmware Affected: version 4.32 through 5.37 Patch 1
Create a notification for this product.
Zyxel USG FLEX series firmware Affected: version 4.50 through 5.37 Patch 1
Create a notification for this product.
Zyxel USG FLEX 50(W) series firmware Affected: version 4.16 through 5.37 Patch 1
Create a notification for this product.
Zyxel USG20(W)-VPN series firmware Affected: version 4.16 through 5.37 Patch 1
Create a notification for this product.
Zyxel USG FLEX H series firmware Affected: version 1.10 through 1.10 Patch 1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2023-4746 (GCVE-0-2023-4746)

Vulnerability from cvelistv5 – Published: 2023-09-04 00:00 – Updated: 2024-08-02 07:37
VLAI
Title
TOTOLINK N200RE V5 Validity_check format string
Summary
A vulnerability classified as critical has been found in TOTOLINK N200RE V5 9.3.5u.6437_B20230519. This affects the function Validity_check. The manipulation leads to format string. It is possible to initiate the attack remotely. The root-cause of the vulnerability is a format string issue. But the impact is to bypass the validation which leads to to OS command injection. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-238635.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.238635 vdb-entrytechnical-description
https://vuldb.com/?ctiid.238635 signaturepermissions-required
https://gist.github.com/dmknght/8f3b6aa65e9d08f45… exploit
Impacted products
Vendor Product Version
TOTOLINK N200RE V5 Affected: 9.3.5u.6437_B20230519
Create a notification for this product.
Credits
dmknght (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2023-2186 (GCVE-0-2023-2186)

Vulnerability from cvelistv5 – Published: 2023-06-07 06:37 – Updated: 2025-01-06 20:10
VLAI
Summary
On Triangle MicroWorks' SCADA Data Gateway version <= v5.01.03, an unauthenticated attacker can send a specially crafted broadcast message including format string characters to the SCADA Data Gateway to perform unrestricted memory reads.An unauthenticated user can use this format string vulnerability to repeatedly crash the GTWWebMonitor.exe process to DoS the Web Monitor. Furthermore, an authenticated user can leverage this vulnerability to leak memory from the GTWWebMonitor.exe process. This could be leveraged in an exploit chain to gain code execution.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
References
Impacted products
Credits
Sam Quinn
Show details on NVD website
To clipboard 

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Mitigation
Requirements

Choose a language that is not subject to this flaw.

Mitigation
Implementation

Ensure that all format string functions are passed a static string which cannot be controlled by the user, and that the proper number of arguments are always sent to that function as well. If at all possible, use functions that do not support the %n operator in format strings. [REF-116] [REF-117]

Mitigation
Build and Compilation

Run compilers and linkers with high warning levels, since they may detect incorrect usage.

CAPEC-135: Format String Injection

An adversary includes formatting characters in a string input field on the target application. Most applications assume that users will provide static text and may respond unpredictably to the presence of formatting character. For example, in certain functions of the C programming languages such as printf, the formatting character %s will print the contents of a memory location expecting this location to identify a string and the formatting character %n prints the number of DWORD written in the memory. An adversary can use this to read or write to memory locations or files, or simply to manipulate the value of the resulting text in unexpected ways. Reading or writing memory may result in program crashes and writing memory could result in the execution of arbitrary code if the adversary can write to the program stack.

CAPEC-67: String Format Overflow in syslog()

This attack targets applications and software that uses the syslog() function insecurely. If an application does not explicitely use a format string parameter in a call to syslog(), user input can be placed in the format string parameter leading to a format string injection attack. Adversaries can then inject malicious format string commands into the function call leading to a buffer overflow. There are many reported software vulnerabilities with the root cause being a misuse of the syslog() function.

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