Insecure Binary compilation

Insecure Binary compilation

Description

The binary for the IOS platform has been compiled without the Stack Smashing Protector (SSP) and Automatic Reference Counting (ARC) flags which provide protection against Stack Overflow attacks and memory corruption.

Impact

Overwrite registers in memory or cause a denial of service through buffer overflow attacks.

Recommendation

Compile binaries with ARC and fstack-protector-all flags.

Threat

Internal attacker with access to the IPA.

Expected Remediation Time

⌚ 450 minutes.

Score

Default score using CVSS 3.1. It may change depending on the context of the src.

Base

  • Attack vector: A
  • Attack complexity: H
  • Privileges required: L
  • User interaction: N
  • Scope: U
  • Confidentiality: N
  • Integrity: L
  • Availability: L

Temporal

  • Exploit code maturity: P
  • Remediation level: O
  • Report confidence: X

Result

  • Vector string: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:X
  • Score:
    • Base: 3.7
    • Temporal: 3.4
  • Severity:
    • Base: Low
    • Temporal: Low

Score 4.0

Default score using CVSS 4.0. It may change depending on the context of the src.

Base 4.0

  • Attack vector: A
  • Attack complexity: H
  • Attack Requirements: N
  • Privileges required: L
  • User interaction: N
  • Confidentiality (VC): N
  • Integrity (VI): L
  • Availability (VA): L
  • Confidentiality (SC): N
  • Integrity (SI): N
  • Availability (SA): N

Threat 4.0

  • Exploit maturity: P

Result 4.0

  • Vector string: CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
  • Score:
    • CVSS-BT: 1.2
  • Severity:
    • CVSS-BT: Low

Compliant code

The application includes ARC and fstack-protector-all flags configured for binary file compilation

                sample_app = executable('sample_app',
  'app/main.c',
  dependencies: libc_dep,
  # Added flag below
  c_args: '-fstack-protector-all',
  c_args: '-f-objc-arc',
  link_args: [
      linker_script_flags,
      map_file.format(meson.current_build_dir()+'/sample_app'),
  ],
  link_depends: linker_script_deps,
  native: false
)

            

Non compliant code

The application has insecure configuration for binary file compilation

                sample_app = executable('sample_app',
  'app/main.c',
  dependencies: libc_dep,
  # Added flag below
  c_args: '-fstack-protector-none',
  c_args: '-fno-objc-arc',
  link_args: [
      linker_script_flags,
      map_file.format(meson.current_build_dir()+'/sample_app'),
  ],
  link_depends: linker_script_deps,
  native: false
)

            

Requirements

Fixes

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