Cookie Injection Vulnerability in GNU Wget from GNU
CVE-2018-0494

6.5MEDIUM

Key Information:

Vendor

Gnu
Status
Wget
Vendor
CVE Published:
6 May 2018

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 70%

What is CVE-2018-0494?

GNU Wget versions prior to 1.19.5 are susceptible to a cookie injection vulnerability. This flaw resides in the resp_new function within http.c, where an attacker can exploit a sequence of ' ' characters in a continuation line to inject malicious cookies. Such an attack may compromise the integrity of web sessions, allowing unauthorized access or data manipulation. It's essential to update to the latest version to mitigate this risk and ensure the secure operation of web-based functionalities.

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Deploy the Patch

Affected Version(s)

WGet WGet

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2018-0494 - Proof of Concept

References

https://sintonen.fi/advisories/gnu-wget-cookie-injection.txt
x_refsource_MISC
https://access.redhat.com/errata/RHSA-2018:3052
vendor-advisoryx_refsource_REDHAT
https://savannah.gnu.org/bugs/?53763
x_refsource_MISC

EPSS Score

70% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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