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Ten-Year Old sudo Vulnerability Gives Root Privileges on Host

posted by Fnord666 on Thursday January 28 2021, @07:31AM   Printer-friendly
from the hiding-in-plain-site dept.

upstart writes in with an IRC submission for Bytram:

Ten-Year Old Sudo Vulnerability Gives Root Privileges on Host:

A major security hole in the Sudo utility could be abused by unprivileged users to gain root privileges on the vulnerable host, Qualys reports.

Designed to allow users to run programs with the security privileges of another user (by default superuser, hence the name, which is derived from 'superuser do'), Sudo is present in major Unix- and Linux-based operating systems out there.

Tracked as CVE-2021-3156, the recently identified vulnerability, which Qualys refers to as "Baron Samedit," was introduced in July 2011, and can be exploited to gain root privileges using a default Sudo configuration.

This means that an attacker able to compromise a low-privileged account on the machine could abuse the vulnerability to gain root access.

All legacy versions of Sudo, from 1.8.2 to 1.8.31p2, as well as the utility's stable releases from 1.9.0 to 1.9.5p1 are affected, in their default configuration.

[...] Qualys, which provides an in-depth technical analysis of the vulnerability, has published a proof-of-concept video to demonstrate how the issue can be exploited.

Also at Bleeping Computer.

CVE-2021-3156: Heap-Based Buffer Overflow in Sudo (Baron Samedit)

CVE-2021-3156

Original Submission

 
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  • (Score: 5, Funny) by choose another one on Thursday January 28 2021, @10:46AM (2 children)

    by choose another one (515) on Thursday January 28 2021, @10:46AM (#1105999)

    Sudo: ten years it's bin there, ten miserable years
    Bash: [smirks] oh you youngsters, ten?, really?, try twenty five [holds onto beer, drinks deeply]
    Proprietary: Ah, the wonders of open source, many eyeballs, all bugs are shallow [drinks, chokes, segfaults]

    Starting Score:    1  point
    Moderation   +4  
       Interesting=1, Funny=2, Touché=1, Total=4
    Extra 'Funny' Modifier   0  
    Karma-Bonus Modifier   +1  
    Total Score:   5  

  • (Score: 0) by Anonymous Coward on Thursday January 28 2021, @04:13PM (1 child)

    by Anonymous Coward on Thursday January 28 2021, @04:13PM (#1106131)

    DNA: that's not a bug that's a feature

    • (Score: 2) by DECbot on Thursday January 28 2021, @10:14PM

      by DECbot (832) on Thursday January 28 2021, @10:14PM (#1106311) Journal

      more like...
      DNA: that sequence came from bugs... yeah, the crawly ones.

      --
      cats~$ sudo chown -R us /home/base